// Copyright (c) 2014 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//    * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef CEF_INCLUDE_INTERNAL_CEF_TYPES_H_
#define CEF_INCLUDE_INTERNAL_CEF_TYPES_H_
#pragma once

#include "build/build_config.h"

#include "include/base/cef_basictypes.h"
#include "include/base/cef_callback.h"
#include "include/internal/cef_string.h"
#include "include/internal/cef_string_list.h"
#include "include/internal/cef_time.h"
#include "include/internal/cef_types_geometry.h"

// Bring in platform-specific definitions.
#if defined(OS_WIN)
#include "include/internal/cef_types_win.h"
#elif defined(OS_MAC)
#include "include/internal/cef_types_mac.h"
#elif defined(OS_LINUX) || BUILDFLAG(IS_OHOS)
#include "include/internal/cef_types_linux.h"
#endif

// Permission request callback.
typedef base::RepeatingCallback<void(bool)> cef_permission_callback_t;

// cef accelerated widget type
typedef uint32_t cef_accelerated_widget_t;

// cef native window type
typedef void* cef_native_window_t;

// 32-bit ARGB color value, not premultiplied. The color components are always
// in a known order. Equivalent to the SkColor type.
typedef uint32 cef_color_t;

// Return the alpha byte from a cef_color_t value.
#define CefColorGetA(color) (((color) >> 24) & 0xFF)
// Return the red byte from a cef_color_t value.
#define CefColorGetR(color) (((color) >> 16) & 0xFF)
// Return the green byte from a cef_color_t value.
#define CefColorGetG(color) (((color) >> 8) & 0xFF)
// Return the blue byte from a cef_color_t value.
#define CefColorGetB(color) (((color) >> 0) & 0xFF)

// Return an cef_color_t value with the specified byte component values.
#define CefColorSetARGB(a, r, g, b)                                         \
  static_cast<cef_color_t>(                                                 \
      (static_cast<unsigned>(a) << 24) | (static_cast<unsigned>(r) << 16) | \
      (static_cast<unsigned>(g) << 8) | (static_cast<unsigned>(b) << 0))

// Return an int64 value with the specified low and high int32 component values.
#define CefInt64Set(int32_low, int32_high)                                \
  static_cast<int64>((static_cast<uint32>(int32_low)) |                   \
                     (static_cast<int64>(static_cast<int32>(int32_high))) \
                         << 32)

// Return the low int32 value from an int64 value.
#define CefInt64GetLow(int64_val) static_cast<int32>(int64_val)
// Return the high int32 value from an int64 value.
#define CefInt64GetHigh(int64_val) \
  static_cast<int32>((static_cast<int64>(int64_val) >> 32) & 0xFFFFFFFFL)

#ifdef __cplusplus
extern "C" {
#endif

///
// Log severity levels.
///
typedef enum {
  ///
  // Default logging (currently INFO logging).
  ///
  LOGSEVERITY_DEFAULT,

  ///
  // Verbose logging.
  ///
  LOGSEVERITY_VERBOSE,

  ///
  // DEBUG logging.
  ///
  LOGSEVERITY_DEBUG = LOGSEVERITY_VERBOSE,

  ///
  // INFO logging.
  ///
  LOGSEVERITY_INFO,

  ///
  // WARNING logging.
  ///
  LOGSEVERITY_WARNING,

  ///
  // ERROR logging.
  ///
  LOGSEVERITY_ERROR,

  ///
  // FATAL logging.
  ///
  LOGSEVERITY_FATAL,

  ///
  // Disable logging to file for all messages, and to stderr for messages with
  // severity less than FATAL.
  ///
  LOGSEVERITY_DISABLE = 99
} cef_log_severity_t;

///
// Represents the state of a setting.
///
typedef enum {
  ///
  // Use the default state for the setting.
  ///
  STATE_DEFAULT = 0,

  ///
  // Enable or allow the setting.
  ///
  STATE_ENABLED,

  ///
  // Disable or disallow the setting.
  ///
  STATE_DISABLED,
} cef_state_t;

///
// Initialization settings. Specify NULL or 0 to get the recommended default
// values. Many of these and other settings can also configured using command-
// line switches.
///
typedef struct _cef_settings_t {
  ///
  // Size of this structure.
  ///
  size_t size;

  ///
  // Set to true (1) to disable the sandbox for sub-processes. See
  // cef_sandbox_win.h for requirements to enable the sandbox on Windows. Also
  // configurable using the "no-sandbox" command-line switch.
  ///
  int no_sandbox;

  ///
  // The path to a separate executable that will be launched for sub-processes.
  // If this value is empty on Windows or Linux then the main process executable
  // will be used. If this value is empty on macOS then a helper executable must
  // exist at "Contents/Frameworks/<app> Helper.app/Contents/MacOS/<app> Helper"
  // in the top-level app bundle. See the comments on CefExecuteProcess() for
  // details. If this value is non-empty then it must be an absolute path. Also
  // configurable using the "browser-subprocess-path" command-line switch.
  ///
  cef_string_t browser_subprocess_path;

  ///
  // The path to the CEF framework directory on macOS. If this value is empty
  // then the framework must exist at "Contents/Frameworks/Chromium Embedded
  // Framework.framework" in the top-level app bundle. If this value is
  // non-empty then it must be an absolute path. Also configurable using the
  // "framework-dir-path" command-line switch.
  ///
  cef_string_t framework_dir_path;

  ///
  // The path to the main bundle on macOS. If this value is empty then it
  // defaults to the top-level app bundle. If this value is non-empty then it
  // must be an absolute path. Also configurable using the "main-bundle-path"
  // command-line switch.
  ///
  cef_string_t main_bundle_path;

  ///
  // Set to true (1) to enable use of the Chrome runtime in CEF. This feature is
  // considered experimental and is not recommended for most users at this time.
  // See issue #2969 for details.
  ///
  int chrome_runtime;

  ///
  // Set to true (1) to have the browser process message loop run in a separate
  // thread. If false (0) then the CefDoMessageLoopWork() function must be
  // called from your application message loop. This option is only supported on
  // Windows and Linux.
  ///
  int multi_threaded_message_loop;

  ///
  // Set to true (1) to control browser process main (UI) thread message pump
  // scheduling via the CefBrowserProcessHandler::OnScheduleMessagePumpWork()
  // callback. This option is recommended for use in combination with the
  // CefDoMessageLoopWork() function in cases where the CEF message loop must be
  // integrated into an existing application message loop (see additional
  // comments and warnings on CefDoMessageLoopWork). Enabling this option is not
  // recommended for most users; leave this option disabled and use either the
  // CefRunMessageLoop() function or multi_threaded_message_loop if possible.
  ///
  int external_message_pump;

  ///
  // Set to true (1) to enable windowless (off-screen) rendering support. Do not
  // enable this value if the application does not use windowless rendering as
  // it may reduce rendering performance on some systems.
  ///
  int windowless_rendering_enabled;

  ///
  // Set to true (1) to disable configuration of browser process features using
  // standard CEF and Chromium command-line arguments. Configuration can still
  // be specified using CEF data structures or via the
  // CefApp::OnBeforeCommandLineProcessing() method.
  ///
  int command_line_args_disabled;

  ///
  // The location where data for the global browser cache will be stored on
  // disk. If this value is non-empty then it must be an absolute path that is
  // either equal to or a child directory of CefSettings.root_cache_path. If
  // this value is empty then browsers will be created in "incognito mode" where
  // in-memory caches are used for storage and no data is persisted to disk.
  // HTML5 databases such as localStorage will only persist across sessions if a
  // cache path is specified. Can be overridden for individual CefRequestContext
  // instances via the CefRequestContextSettings.cache_path value. When using
  // the Chrome runtime the "default" profile will be used if |cache_path| and
  // |root_cache_path| have the same value.
  ///
  cef_string_t cache_path;

  ///
  // The root directory that all CefSettings.cache_path and
  // CefRequestContextSettings.cache_path values must have in common. If this
  // value is empty and CefSettings.cache_path is non-empty then it will
  // default to the CefSettings.cache_path value. If this value is non-empty
  // then it must be an absolute path. Failure to set this value correctly may
  // result in the sandbox blocking read/write access to the cache_path
  // directory.
  ///
  cef_string_t root_cache_path;

  ///
  // The location where user data such as the Widevine CDM module and spell
  // checking dictionary files will be stored on disk. If this value is empty
  // then the default platform-specific user data directory will be used
  // ("~/.config/cef_user_data" directory on Linux, "~/Library/Application
  // Support/CEF/User Data" directory on MacOS, "AppData\Local\CEF\User Data"
  // directory under the user profile directory on Windows). If this value is
  // non-empty then it must be an absolute path. When using the Chrome runtime
  // this value will be ignored in favor of the |root_cache_path| value.
  ///
  cef_string_t user_data_path;

  ///
  // To persist session cookies (cookies without an expiry date or validity
  // interval) by default when using the global cookie manager set this value to
  // true (1). Session cookies are generally intended to be transient and most
  // Web browsers do not persist them. A |cache_path| value must also be
  // specified to enable this feature. Also configurable using the
  // "persist-session-cookies" command-line switch. Can be overridden for
  // individual CefRequestContext instances via the
  // CefRequestContextSettings.persist_session_cookies value.
  ///
  int persist_session_cookies;

  ///
  // To persist user preferences as a JSON file in the cache path directory set
  // this value to true (1). A |cache_path| value must also be specified
  // to enable this feature. Also configurable using the
  // "persist-user-preferences" command-line switch. Can be overridden for
  // individual CefRequestContext instances via the
  // CefRequestContextSettings.persist_user_preferences value.
  ///
  int persist_user_preferences;

  ///
  // Value that will be returned as the User-Agent HTTP header. If empty the
  // default User-Agent string will be used. Also configurable using the
  // "user-agent" command-line switch.
  ///
  cef_string_t user_agent;

  ///
  // Value that will be inserted as the product portion of the default
  // User-Agent string. If empty the Chromium product version will be used. If
  // |userAgent| is specified this value will be ignored. Also configurable
  // using the "user-agent-product" command-line switch.
  ///
  cef_string_t user_agent_product;

  ///
  // The locale string that will be passed to WebKit. If empty the default
  // locale of "en-US" will be used. This value is ignored on Linux where locale
  // is determined using environment variable parsing with the precedence order:
  // LANGUAGE, LC_ALL, LC_MESSAGES and LANG. Also configurable using the "lang"
  // command-line switch.
  ///
  cef_string_t locale;

  ///
  // The directory and file name to use for the debug log. If empty a default
  // log file name and location will be used. On Windows and Linux a "debug.log"
  // file will be written in the main executable directory. On MacOS a
  // "~/Library/Logs/<app name>_debug.log" file will be written where <app name>
  // is the name of the main app executable. Also configurable using the
  // "log-file" command-line switch.
  ///
  cef_string_t log_file;

  ///
  // The log severity. Only messages of this severity level or higher will be
  // logged. When set to DISABLE no messages will be written to the log file,
  // but FATAL messages will still be output to stderr. Also configurable using
  // the "log-severity" command-line switch with a value of "verbose", "info",
  // "warning", "error", "fatal" or "disable".
  ///
  cef_log_severity_t log_severity;

  ///
  // Custom flags that will be used when initializing the V8 JavaScript engine.
  // The consequences of using custom flags may not be well tested. Also
  // configurable using the "js-flags" command-line switch.
  ///
  cef_string_t javascript_flags;

  ///
  // The fully qualified path for the resources directory. If this value is
  // empty the *.pak files must be located in the module directory on
  // Windows/Linux or the app bundle Resources directory on MacOS. If this
  // value is non-empty then it must be an absolute path. Also configurable
  // using the "resources-dir-path" command-line switch.
  ///
  cef_string_t resources_dir_path;

  ///
  // The fully qualified path for the locales directory. If this value is empty
  // the locales directory must be located in the module directory. If this
  // value is non-empty then it must be an absolute path. This value is ignored
  // on MacOS where pack files are always loaded from the app bundle Resources
  // directory. Also configurable using the "locales-dir-path" command-line
  // switch.
  ///
  cef_string_t locales_dir_path;

  ///
  // Set to true (1) to disable loading of pack files for resources and locales.
  // A resource bundle handler must be provided for the browser and render
  // processes via CefApp::GetResourceBundleHandler() if loading of pack files
  // is disabled. Also configurable using the "disable-pack-loading" command-
  // line switch.
  ///
  int pack_loading_disabled;

  ///
  // Set to a value between 1024 and 65535 to enable remote debugging on the
  // specified port. For example, if 8080 is specified the remote debugging URL
  // will be http://localhost:8080. CEF can be remotely debugged from any CEF or
  // Chrome browser window. Also configurable using the "remote-debugging-port"
  // command-line switch.
  ///
  int remote_debugging_port;

  ///
  // The number of stack trace frames to capture for uncaught exceptions.
  // Specify a positive value to enable the CefRenderProcessHandler::
  // OnUncaughtException() callback. Specify 0 (default value) and
  // OnUncaughtException() will not be called. Also configurable using the
  // "uncaught-exception-stack-size" command-line switch.
  ///
  int uncaught_exception_stack_size;

  ///
  // Background color used for the browser before a document is loaded and when
  // no document color is specified. The alpha component must be either fully
  // opaque (0xFF) or fully transparent (0x00). If the alpha component is fully
  // opaque then the RGB components will be used as the background color. If the
  // alpha component is fully transparent for a windowed browser then the
  // default value of opaque white be used. If the alpha component is fully
  // transparent for a windowless (off-screen) browser then transparent painting
  // will be enabled.
  ///
  cef_color_t background_color;

  ///
  // Comma delimited ordered list of language codes without any whitespace that
  // will be used in the "Accept-Language" HTTP header. May be overridden on a
  // per-browser basis using the CefBrowserSettings.accept_language_list value.
  // If both values are empty then "en-US,en" will be used. Can be overridden
  // for individual CefRequestContext instances via the
  // CefRequestContextSettings.accept_language_list value.
  ///
  cef_string_t accept_language_list;

  ///
  // Comma delimited list of schemes supported by the associated
  // CefCookieManager. If |cookieable_schemes_exclude_defaults| is false (0) the
  // default schemes ("http", "https", "ws" and "wss") will also be supported.
  // Specifying a |cookieable_schemes_list| value and setting
  // |cookieable_schemes_exclude_defaults| to true (1) will disable all loading
  // and saving of cookies for this manager. Can be overridden
  // for individual CefRequestContext instances via the
  // CefRequestContextSettings.cookieable_schemes_list and
  // CefRequestContextSettings.cookieable_schemes_exclude_defaults values.
  ///
  cef_string_t cookieable_schemes_list;
  int cookieable_schemes_exclude_defaults;

  ///
  // GUID string used for identifying the application. This is passed to the
  // system AV function for scanning downloaded files. By default, the GUID
  // will be an empty string and the file will be treated as an untrusted
  // file when the GUID is empty.
  ///
  cef_string_t application_client_id_for_file_scanning;
} cef_settings_t;

///
// Request context initialization settings. Specify NULL or 0 to get the
// recommended default values.
///
typedef struct _cef_request_context_settings_t {
  ///
  // Size of this structure.
  ///
  size_t size;

  ///
  // The location where cache data for this request context will be stored on
  // disk. If this value is non-empty then it must be an absolute path that is
  // either equal to or a child directory of CefSettings.root_cache_path. If
  // this value is empty then browsers will be created in "incognito mode" where
  // in-memory caches are used for storage and no data is persisted to disk.
  // HTML5 databases such as localStorage will only persist across sessions if a
  // cache path is specified. To share the global browser cache and related
  // configuration set this value to match the CefSettings.cache_path value.
  ///
  cef_string_t cache_path;

  ///
  // To persist session cookies (cookies without an expiry date or validity
  // interval) by default when using the global cookie manager set this value to
  // true (1). Session cookies are generally intended to be transient and most
  // Web browsers do not persist them. Can be set globally using the
  // CefSettings.persist_session_cookies value. This value will be ignored if
  // |cache_path| is empty or if it matches the CefSettings.cache_path value.
  ///
  int persist_session_cookies;

  ///
  // To persist user preferences as a JSON file in the cache path directory set
  // this value to true (1). Can be set globally using the
  // CefSettings.persist_user_preferences value. This value will be ignored if
  // |cache_path| is empty or if it matches the CefSettings.cache_path value.
  ///
  int persist_user_preferences;

  ///
  // Comma delimited ordered list of language codes without any whitespace that
  // will be used in the "Accept-Language" HTTP header. Can be set globally
  // using the CefSettings.accept_language_list value or overridden on a per-
  // browser basis using the CefBrowserSettings.accept_language_list value. If
  // all values are empty then "en-US,en" will be used. This value will be
  // ignored if |cache_path| matches the CefSettings.cache_path value.
  ///
  cef_string_t accept_language_list;

  ///
  // Comma delimited list of schemes supported by the associated
  // CefCookieManager. If |cookieable_schemes_exclude_defaults| is false (0) the
  // default schemes ("http", "https", "ws" and "wss") will also be supported.
  // Specifying a |cookieable_schemes_list| value and setting
  // |cookieable_schemes_exclude_defaults| to true (1) will disable all loading
  // and saving of cookies for this manager. These values will be ignored if
  // |cache_path| matches the CefSettings.cache_path value.
  ///
  cef_string_t cookieable_schemes_list;
  int cookieable_schemes_exclude_defaults;
} cef_request_context_settings_t;

///
// Browser initialization settings. Specify NULL or 0 to get the recommended
// default values. The consequences of using custom values may not be well
// tested. Many of these and other settings can also configured using command-
// line switches.
///
typedef struct _cef_browser_settings_t {
  ///
  // Size of this structure.
  ///
  size_t size;

  ///
  // The maximum rate in frames per second (fps) that CefRenderHandler::OnPaint
  // will be called for a windowless browser. The actual fps may be lower if
  // the browser cannot generate frames at the requested rate. The minimum
  // value is 1 and the maximum value is 60 (default 30). This value can also be
  // changed dynamically via CefBrowserHost::SetWindowlessFrameRate.
  ///
  int windowless_frame_rate;

  // The below values map to WebPreferences settings.

  ///
  // Font settings.
  ///
  cef_string_t standard_font_family;
  cef_string_t fixed_font_family;
  cef_string_t serif_font_family;
  cef_string_t sans_serif_font_family;
  cef_string_t cursive_font_family;
  cef_string_t fantasy_font_family;
  int default_font_size;
  int default_fixed_font_size;
  int minimum_font_size;
  int minimum_logical_font_size;

  ///
  // Default encoding for Web content. If empty "ISO-8859-1" will be used. Also
  // configurable using the "default-encoding" command-line switch.
  ///
  cef_string_t default_encoding;

  ///
  // Controls the loading of fonts from remote sources. Also configurable using
  // the "disable-remote-fonts" command-line switch.
  ///
  cef_state_t remote_fonts;

  ///
  // Controls whether JavaScript can be executed. Also configurable using the
  // "disable-javascript" command-line switch.
  ///
  cef_state_t javascript;

  ///
  // Controls whether JavaScript can be used to close windows that were not
  // opened via JavaScript. JavaScript can still be used to close windows that
  // were opened via JavaScript or that have no back/forward history. Also
  // configurable using the "disable-javascript-close-windows" command-line
  // switch.
  ///
  cef_state_t javascript_close_windows;

  ///
  // Controls whether JavaScript can access the clipboard. Also configurable
  // using the "disable-javascript-access-clipboard" command-line switch.
  ///
  cef_state_t javascript_access_clipboard;

  ///
  // Controls whether DOM pasting is supported in the editor via
  // execCommand("paste"). The |javascript_access_clipboard| setting must also
  // be enabled. Also configurable using the "disable-javascript-dom-paste"
  // command-line switch.
  ///
  cef_state_t javascript_dom_paste;

  ///
  // Controls whether any plugins will be loaded. Also configurable using the
  // "disable-plugins" command-line switch.
  ///
  cef_state_t plugins;

  ///
  // Controls whether image URLs will be loaded from the network. A cached image
  // will still be rendered if requested. Also configurable using the
  // "disable-image-loading" command-line switch.
  ///
  cef_state_t image_loading;

  ///
  // Controls whether standalone images will be shrunk to fit the page. Also
  // configurable using the "image-shrink-standalone-to-fit" command-line
  // switch.
  ///
  cef_state_t image_shrink_standalone_to_fit;

  ///
  // Controls whether text areas can be resized. Also configurable using the
  // "disable-text-area-resize" command-line switch.
  ///
  cef_state_t text_area_resize;

  ///
  // Controls whether the tab key can advance focus to links. Also configurable
  // using the "disable-tab-to-links" command-line switch.
  ///
  cef_state_t tab_to_links;

  ///
  // Controls whether local storage can be used. Also configurable using the
  // "disable-local-storage" command-line switch.
  ///
  cef_state_t local_storage;

  ///
  // Controls whether databases can be used. Also configurable using the
  // "disable-databases" command-line switch.
  ///
  cef_state_t databases;

  ///
  // Controls whether WebGL can be used. Note that WebGL requires hardware
  // support and may not work on all systems even when enabled. Also
  // configurable using the "disable-webgl" command-line switch.
  ///
  cef_state_t webgl;

  ///
  // Background color used for the browser before a document is loaded and when
  // no document color is specified. The alpha component must be either fully
  // opaque (0xFF) or fully transparent (0x00). If the alpha component is fully
  // opaque then the RGB components will be used as the background color. If the
  // alpha component is fully transparent for a windowed browser then the
  // CefSettings.background_color value will be used. If the alpha component is
  // fully transparent for a windowless (off-screen) browser then transparent
  // painting will be enabled.
  ///
  cef_color_t background_color;

  ///
  // Comma delimited ordered list of language codes without any whitespace that
  // will be used in the "Accept-Language" HTTP header. May be set globally
  // using the CefSettings.accept_language_list value. If both values are
  // empty then "en-US,en" will be used.
  ///
  cef_string_t accept_language_list;

  /* ohos webview begin */
  ///
  // Force the background color to be dark
  ///
  cef_state_t force_dark_mode_enabled;
  cef_state_t dark_prefer_color_scheme_enabled;
  cef_state_t loads_images_automatically;
  bool javascript_can_open_windows_automatically;
  int text_size_percent;
  cef_state_t allow_running_insecure_content;
  cef_state_t strict_mixed_content_checking;
  cef_state_t allow_mixed_content_upgrades;
  bool geolocation_enabled;
  bool supports_double_tap_zoom;
  bool supports_multi_touch_zoom;
  cef_state_t initialize_at_minimum_page_scale;
  bool viewport_meta_enabled;
  bool user_gesture_required;
  bool pinch_smooth_mode;
#if BUILDFLAG(IS_OHOS)
  cef_state_t hide_vertical_scrollbars;
  cef_state_t hide_horizontal_scrollbars;
  bool contextmenu_customization_enabled;
  cef_color_t scrollbar_color;
  bool blank_target_popup_intercept_enabled;
#endif
  /* ohos webview end */
} cef_browser_settings_t;

///
// Return value types.
///
typedef enum {
  ///
  // Cancel immediately.
  ///
  RV_CANCEL = 0,

  ///
  // Continue immediately.
  ///
  RV_CONTINUE,

  ///
  // Continue asynchronously (usually via a callback).
  ///
  RV_CONTINUE_ASYNC,
} cef_return_value_t;

///
// URL component parts.
///
typedef struct _cef_urlparts_t {
  ///
  // The complete URL specification.
  ///
  cef_string_t spec;

  ///
  // Scheme component not including the colon (e.g., "http").
  ///
  cef_string_t scheme;

  ///
  // User name component.
  ///
  cef_string_t username;

  ///
  // Password component.
  ///
  cef_string_t password;

  ///
  // Host component. This may be a hostname, an IPv4 address or an IPv6 literal
  // surrounded by square brackets (e.g., "[2001:db8::1]").
  ///
  cef_string_t host;

  ///
  // Port number component.
  ///
  cef_string_t port;

  ///
  // Origin contains just the scheme, host, and port from a URL. Equivalent to
  // clearing any username and password, replacing the path with a slash, and
  // clearing everything after that. This value will be empty for non-standard
  // URLs.
  ///
  cef_string_t origin;

  ///
  // Path component including the first slash following the host.
  ///
  cef_string_t path;

  ///
  // Query string component (i.e., everything following the '?').
  ///
  cef_string_t query;

  ///
  // Fragment (hash) identifier component (i.e., the string following the '#').
  ///
  cef_string_t fragment;
} cef_urlparts_t;

///
// Cookie priority values.
///
typedef enum {
  CEF_COOKIE_PRIORITY_LOW = -1,
  CEF_COOKIE_PRIORITY_MEDIUM = 0,
  CEF_COOKIE_PRIORITY_HIGH = 1,
} cef_cookie_priority_t;

///
// Cookie same site values.
///
typedef enum {
  CEF_COOKIE_SAME_SITE_UNSPECIFIED,
  CEF_COOKIE_SAME_SITE_NO_RESTRICTION,
  CEF_COOKIE_SAME_SITE_LAX_MODE,
  CEF_COOKIE_SAME_SITE_STRICT_MODE,
} cef_cookie_same_site_t;

///
// Cookie information.
///
typedef struct _cef_cookie_t {
  ///
  // The cookie name.
  ///
  cef_string_t name;

  ///
  // The cookie value.
  ///
  cef_string_t value;

  ///
  // If |domain| is empty a host cookie will be created instead of a domain
  // cookie. Domain cookies are stored with a leading "." and are visible to
  // sub-domains whereas host cookies are not.
  ///
  cef_string_t domain;

  ///
  // If |path| is non-empty only URLs at or below the path will get the cookie
  // value.
  ///
  cef_string_t path;

  ///
  // If |secure| is true the cookie will only be sent for HTTPS requests.
  ///
  int secure;

  ///
  // If |httponly| is true the cookie will only be sent for HTTP requests.
  ///
  int httponly;

  ///
  // The cookie creation date. This is automatically populated by the system on
  // cookie creation.
  ///
  cef_time_t creation;

  ///
  // The cookie last access date. This is automatically populated by the system
  // on access.
  ///
  cef_time_t last_access;

  ///
  // The cookie expiration date is only valid if |has_expires| is true.
  ///
  int has_expires;
  cef_time_t expires;

  ///
  // Same site.
  ///
  cef_cookie_same_site_t same_site;

  ///
  // Priority.
  ///
  cef_cookie_priority_t priority;
} cef_cookie_t;

///
// Process termination status values.
///
typedef enum {
  ///
  // Non-zero exit status.
  ///
  TS_ABNORMAL_TERMINATION,

  ///
  // SIGKILL or task manager kill.
  ///
  TS_PROCESS_WAS_KILLED,

  ///
  // Segmentation fault.
  ///
  TS_PROCESS_CRASHED,

  ///
  // Out of memory. Some platforms may use TS_PROCESS_CRASHED instead.
  ///
  TS_PROCESS_OOM,
} cef_termination_status_t;

///
// Path key values.
///
typedef enum {
  ///
  // Current directory.
  ///
  PK_DIR_CURRENT,

  ///
  // Directory containing PK_FILE_EXE.
  ///
  PK_DIR_EXE,

  ///
  // Directory containing PK_FILE_MODULE.
  ///
  PK_DIR_MODULE,

  ///
  // Temporary directory.
  ///
  PK_DIR_TEMP,

  ///
  // Path and filename of the current executable.
  ///
  PK_FILE_EXE,

  ///
  // Path and filename of the module containing the CEF code (usually the libcef
  // module).
  ///
  PK_FILE_MODULE,

  ///
  // "Local Settings\Application Data" directory under the user profile
  // directory on Windows.
  ///
  PK_LOCAL_APP_DATA,

  ///
  // "Application Data" directory under the user profile directory on Windows
  // and "~/Library/Application Support" directory on MacOS.
  ///
  PK_USER_DATA,

  ///
  // Directory containing application resources. Can be configured via
  // CefSettings.resources_dir_path.
  ///
  PK_DIR_RESOURCES,
} cef_path_key_t;

///
// Storage types.
///
typedef enum {
  ST_LOCALSTORAGE = 0,
  ST_SESSIONSTORAGE,
} cef_storage_type_t;

///
// Supported error code values.
///
typedef enum {
  // No error.
  ERR_NONE = 0,

#define NET_ERROR(label, value) ERR_##label = value,
#include "include/base/internal/cef_net_error_list.h"
#undef NET_ERROR

} cef_errorcode_t;

///
// Supported certificate status code values. See net\cert\cert_status_flags.h
// for more information. CERT_STATUS_NONE is new in CEF because we use an
// enum while cert_status_flags.h uses a typedef and static const variables.
///
typedef enum {
  CERT_STATUS_NONE = 0,
  CERT_STATUS_COMMON_NAME_INVALID = 1 << 0,
  CERT_STATUS_DATE_INVALID = 1 << 1,
  CERT_STATUS_AUTHORITY_INVALID = 1 << 2,
  // 1 << 3 is reserved for ERR_CERT_CONTAINS_ERRORS (not useful with WinHTTP).
  CERT_STATUS_NO_REVOCATION_MECHANISM = 1 << 4,
  CERT_STATUS_UNABLE_TO_CHECK_REVOCATION = 1 << 5,
  CERT_STATUS_REVOKED = 1 << 6,
  CERT_STATUS_INVALID = 1 << 7,
  CERT_STATUS_WEAK_SIGNATURE_ALGORITHM = 1 << 8,
  // 1 << 9 was used for CERT_STATUS_NOT_IN_DNS
  CERT_STATUS_NON_UNIQUE_NAME = 1 << 10,
  CERT_STATUS_WEAK_KEY = 1 << 11,
  // 1 << 12 was used for CERT_STATUS_WEAK_DH_KEY
  CERT_STATUS_PINNED_KEY_MISSING = 1 << 13,
  CERT_STATUS_NAME_CONSTRAINT_VIOLATION = 1 << 14,
  CERT_STATUS_VALIDITY_TOO_LONG = 1 << 15,

  // Bits 16 to 31 are for non-error statuses.
  CERT_STATUS_IS_EV = 1 << 16,
  CERT_STATUS_REV_CHECKING_ENABLED = 1 << 17,
  // Bit 18 was CERT_STATUS_IS_DNSSEC
  CERT_STATUS_SHA1_SIGNATURE_PRESENT = 1 << 19,
  CERT_STATUS_CT_COMPLIANCE_FAILED = 1 << 20,
} cef_cert_status_t;

///
// The manner in which a link click should be opened. These constants match
// their equivalents in Chromium's window_open_disposition.h and should not be
// renumbered.
///
typedef enum {
  WOD_UNKNOWN,
  WOD_CURRENT_TAB,
  WOD_SINGLETON_TAB,
  WOD_NEW_FOREGROUND_TAB,
  WOD_NEW_BACKGROUND_TAB,
  WOD_NEW_POPUP,
  WOD_NEW_WINDOW,
  WOD_SAVE_TO_DISK,
  WOD_OFF_THE_RECORD,
  WOD_IGNORE_ACTION
} cef_window_open_disposition_t;

///
// "Verb" of a drag-and-drop operation as negotiated between the source and
// destination. These constants match their equivalents in WebCore's
// DragActions.h and should not be renumbered.
///
typedef enum {
  DRAG_OPERATION_NONE = 0,
  DRAG_OPERATION_COPY = 1,
  DRAG_OPERATION_LINK = 2,
  DRAG_OPERATION_GENERIC = 4,
  DRAG_OPERATION_PRIVATE = 8,
  DRAG_OPERATION_MOVE = 16,
  DRAG_OPERATION_DELETE = 32,
  DRAG_OPERATION_EVERY = UINT_MAX
} cef_drag_operations_mask_t;

///
// Input mode of a virtual keyboard. These constants match their equivalents
// in Chromium's text_input_mode.h and should not be renumbered.
// See https://html.spec.whatwg.org/#input-modalities:-the-inputmode-attribute
///
typedef enum {
  CEF_TEXT_INPUT_MODE_DEFAULT,
  CEF_TEXT_INPUT_MODE_NONE,
  CEF_TEXT_INPUT_MODE_TEXT,
  CEF_TEXT_INPUT_MODE_TEL,
  CEF_TEXT_INPUT_MODE_URL,
  CEF_TEXT_INPUT_MODE_EMAIL,
  CEF_TEXT_INPUT_MODE_NUMERIC,
  CEF_TEXT_INPUT_MODE_DECIMAL,
  CEF_TEXT_INPUT_MODE_SEARCH,


  CEF_TEXT_INPUT_MODE_MAX = CEF_TEXT_INPUT_MODE_SEARCH,
} cef_text_input_mode_t;

///
// V8 access control values.
///
typedef enum {
  V8_ACCESS_CONTROL_DEFAULT = 0,
  V8_ACCESS_CONTROL_ALL_CAN_READ = 1,
  V8_ACCESS_CONTROL_ALL_CAN_WRITE = 1 << 1,
  V8_ACCESS_CONTROL_PROHIBITS_OVERWRITING = 1 << 2
} cef_v8_accesscontrol_t;

///
// V8 property attribute values.
///
typedef enum {
  V8_PROPERTY_ATTRIBUTE_NONE = 0,            // Writeable, Enumerable,
                                             //   Configurable
  V8_PROPERTY_ATTRIBUTE_READONLY = 1 << 0,   // Not writeable
  V8_PROPERTY_ATTRIBUTE_DONTENUM = 1 << 1,   // Not enumerable
  V8_PROPERTY_ATTRIBUTE_DONTDELETE = 1 << 2  // Not configurable
} cef_v8_propertyattribute_t;

///
// Post data elements may represent either bytes or files.
///
typedef enum {
  PDE_TYPE_EMPTY = 0,
  PDE_TYPE_BYTES,
  PDE_TYPE_FILE,
} cef_postdataelement_type_t;

///
// Resource type for a request. These constants match their equivalents in
// Chromium's ResourceType and should not be renumbered.
///
typedef enum {
  ///
  // Top level page.
  ///
  RT_MAIN_FRAME = 0,

  ///
  // Frame or iframe.
  ///
  RT_SUB_FRAME,

  ///
  // CSS stylesheet.
  ///
  RT_STYLESHEET,

  ///
  // External script.
  ///
  RT_SCRIPT,

  ///
  // Image (jpg/gif/png/etc).
  ///
  RT_IMAGE,

  ///
  // Font.
  ///
  RT_FONT_RESOURCE,

  ///
  // Some other subresource. This is the default type if the actual type is
  // unknown.
  ///
  RT_SUB_RESOURCE,

  ///
  // Object (or embed) tag for a plugin, or a resource that a plugin requested.
  ///
  RT_OBJECT,

  ///
  // Media resource.
  ///
  RT_MEDIA,

  ///
  // Main resource of a dedicated worker.
  ///
  RT_WORKER,

  ///
  // Main resource of a shared worker.
  ///
  RT_SHARED_WORKER,

  ///
  // Explicitly requested prefetch.
  ///
  RT_PREFETCH,

  ///
  // Favicon.
  ///
  RT_FAVICON,

  ///
  // XMLHttpRequest.
  ///
  RT_XHR,

  ///
  // A request for a <ping>
  ///
  RT_PING,

  ///
  // Main resource of a service worker.
  ///
  RT_SERVICE_WORKER,

  ///
  // A report of Content Security Policy violations.
  ///
  RT_CSP_REPORT,

  ///
  // A resource that a plugin requested.
  ///
  RT_PLUGIN_RESOURCE,

  ///
  // A main-frame service worker navigation preload request.
  ///
  RT_NAVIGATION_PRELOAD_MAIN_FRAME = 19,

  ///
  // A sub-frame service worker navigation preload request.
  ///
  RT_NAVIGATION_PRELOAD_SUB_FRAME,
} cef_resource_type_t;

///
// Transition type for a request. Made up of one source value and 0 or more
// qualifiers.
///
typedef enum {
  ///
  // Source is a link click or the JavaScript window.open function. This is
  // also the default value for requests like sub-resource loads that are not
  // navigations.
  ///
  TT_LINK = 0,

  ///
  // Source is some other "explicit" navigation. This is the default value for
  // navigations where the actual type is unknown. See also TT_DIRECT_LOAD_FLAG.
  ///
  TT_EXPLICIT = 1,

  ///
  // Source is a subframe navigation. This is any content that is automatically
  // loaded in a non-toplevel frame. For example, if a page consists of several
  // frames containing ads, those ad URLs will have this transition type.
  // The user may not even realize the content in these pages is a separate
  // frame, so may not care about the URL.
  ///
  TT_AUTO_SUBFRAME = 3,

  ///
  // Source is a subframe navigation explicitly requested by the user that will
  // generate new navigation entries in the back/forward list. These are
  // probably more important than frames that were automatically loaded in
  // the background because the user probably cares about the fact that this
  // link was loaded.
  ///
  TT_MANUAL_SUBFRAME = 4,

  ///
  // Source is a form submission by the user. NOTE: In some situations
  // submitting a form does not result in this transition type. This can happen
  // if the form uses a script to submit the contents.
  ///
  TT_FORM_SUBMIT = 7,

  ///
  // Source is a "reload" of the page via the Reload function or by re-visiting
  // the same URL. NOTE: This is distinct from the concept of whether a
  // particular load uses "reload semantics" (i.e. bypasses cached data).
  ///
  TT_RELOAD = 8,

  ///
  // General mask defining the bits used for the source values.
  ///
  TT_SOURCE_MASK = 0xFF,

  // Qualifiers.
  // Any of the core values above can be augmented by one or more qualifiers.
  // These qualifiers further define the transition.

  ///
  // Attempted to visit a URL but was blocked.
  ///
  TT_BLOCKED_FLAG = 0x00800000,

  ///
  // Used the Forward or Back function to navigate among browsing history.
  // Will be ORed to the transition type for the original load.
  ///
  TT_FORWARD_BACK_FLAG = 0x01000000,

  ///
  // Loaded a URL directly via CreateBrowser, LoadURL or LoadRequest.
  ///
  TT_DIRECT_LOAD_FLAG = 0x02000000,

  ///
  // The beginning of a navigation chain.
  ///
  TT_CHAIN_START_FLAG = 0x10000000,

  ///
  // The last transition in a redirect chain.
  ///
  TT_CHAIN_END_FLAG = 0x20000000,

  ///
  // Redirects caused by JavaScript or a meta refresh tag on the page.
  ///
  TT_CLIENT_REDIRECT_FLAG = 0x40000000,

  ///
  // Redirects sent from the server by HTTP headers.
  ///
  TT_SERVER_REDIRECT_FLAG = 0x80000000,

  ///
  // Used to test whether a transition involves a redirect.
  ///
  TT_IS_REDIRECT_MASK = 0xC0000000,

  ///
  // General mask defining the bits used for the qualifiers.
  ///
  TT_QUALIFIER_MASK = 0xFFFFFF00,
} cef_transition_type_t;

///
// Flags used to customize the behavior of CefURLRequest.
///
typedef enum {
  ///
  // Default behavior.
  ///
  UR_FLAG_NONE = 0,

  ///
  // If set the cache will be skipped when handling the request. Setting this
  // value is equivalent to specifying the "Cache-Control: no-cache" request
  // header. Setting this value in combination with UR_FLAG_ONLY_FROM_CACHE will
  // cause the request to fail.
  ///
  UR_FLAG_SKIP_CACHE = 1 << 0,

  ///
  // If set the request will fail if it cannot be served from the cache (or some
  // equivalent local store). Setting this value is equivalent to specifying the
  // "Cache-Control: only-if-cached" request header. Setting this value in
  // combination with UR_FLAG_SKIP_CACHE or UR_FLAG_DISABLE_CACHE will cause the
  // request to fail.
  ///
  UR_FLAG_ONLY_FROM_CACHE = 1 << 1,

  ///
  // If set the cache will not be used at all. Setting this value is equivalent
  // to specifying the "Cache-Control: no-store" request header. Setting this
  // value in combination with UR_FLAG_ONLY_FROM_CACHE will cause the request to
  // fail.
  ///
  UR_FLAG_DISABLE_CACHE = 1 << 2,

  ///
  // If set user name, password, and cookies may be sent with the request, and
  // cookies may be saved from the response.
  ///
  UR_FLAG_ALLOW_STORED_CREDENTIALS = 1 << 3,

  ///
  // If set upload progress events will be generated when a request has a body.
  ///
  UR_FLAG_REPORT_UPLOAD_PROGRESS = 1 << 4,

  ///
  // If set the CefURLRequestClient::OnDownloadData method will not be called.
  ///
  UR_FLAG_NO_DOWNLOAD_DATA = 1 << 5,

  ///
  // If set 5XX redirect errors will be propagated to the observer instead of
  // automatically re-tried. This currently only applies for requests
  // originated in the browser process.
  ///
  UR_FLAG_NO_RETRY_ON_5XX = 1 << 6,

  ///
  // If set 3XX responses will cause the fetch to halt immediately rather than
  // continue through the redirect.
  ///
  UR_FLAG_STOP_ON_REDIRECT = 1 << 7,
} cef_urlrequest_flags_t;

///
// Flags that represent CefURLRequest status.
///
typedef enum {
  ///
  // Unknown status.
  ///
  UR_UNKNOWN = 0,

  ///
  // Request succeeded.
  ///
  UR_SUCCESS,

  ///
  // An IO request is pending, and the caller will be informed when it is
  // completed.
  ///
  UR_IO_PENDING,

  ///
  // Request was canceled programatically.
  ///
  UR_CANCELED,

  ///
  // Request failed for some reason.
  ///
  UR_FAILED,
} cef_urlrequest_status_t;

// Structure representing a draggable region.
///
typedef struct _cef_draggable_region_t {
  ///
  // Bounds of the region.
  ///
  cef_rect_t bounds;

  ///
  // True (1) this this region is draggable and false (0) otherwise.
  ///
  int draggable;
} cef_draggable_region_t;

///
// Existing process IDs.
///
typedef enum {
  ///
  // Browser process.
  ///
  PID_BROWSER,
  ///
  // Renderer process.
  ///
  PID_RENDERER,
} cef_process_id_t;

///
// Existing thread IDs.
///
typedef enum {
  // BROWSER PROCESS THREADS -- Only available in the browser process.

  ///
  // The main thread in the browser. This will be the same as the main
  // application thread if CefInitialize() is called with a
  // CefSettings.multi_threaded_message_loop value of false. Do not perform
  // blocking tasks on this thread. All tasks posted after
  // CefBrowserProcessHandler::OnContextInitialized() and before CefShutdown()
  // are guaranteed to run. This thread will outlive all other CEF threads.
  ///
  TID_UI,

  ///
  // Used for blocking tasks (e.g. file system access) where the user won't
  // notice if the task takes an arbitrarily long time to complete. All tasks
  // posted after CefBrowserProcessHandler::OnContextInitialized() and before
  // CefShutdown() are guaranteed to run.
  ///
  TID_FILE_BACKGROUND,

  ///
  // Used for blocking tasks (e.g. file system access) that affect UI or
  // responsiveness of future user interactions. Do not use if an immediate
  // response to a user interaction is expected. All tasks posted after
  // CefBrowserProcessHandler::OnContextInitialized() and before CefShutdown()
  // are guaranteed to run.
  // Examples:
  // - Updating the UI to reflect progress on a long task.
  // - Loading data that might be shown in the UI after a future user
  //   interaction.
  ///
  TID_FILE_USER_VISIBLE,

  ///
  // Used for blocking tasks (e.g. file system access) that affect UI
  // immediately after a user interaction. All tasks posted after
  // CefBrowserProcessHandler::OnContextInitialized() and before CefShutdown()
  // are guaranteed to run.
  // Example: Generating data shown in the UI immediately after a click.
  ///
  TID_FILE_USER_BLOCKING,

  ///
  // Used to launch and terminate browser processes.
  ///
  TID_PROCESS_LAUNCHER,

  ///
  // Used to process IPC and network messages. Do not perform blocking tasks on
  // this thread. All tasks posted after
  // CefBrowserProcessHandler::OnContextInitialized() and before CefShutdown()
  // are guaranteed to run.
  ///
  TID_IO,

  // RENDER PROCESS THREADS -- Only available in the render process.

  ///
  // The main thread in the renderer. Used for all WebKit and V8 interaction.
  // Tasks may be posted to this thread after
  // CefRenderProcessHandler::OnWebKitInitialized but are not guaranteed to
  // run before sub-process termination (sub-processes may be killed at any time
  // without warning).
  ///
  TID_RENDERER,
} cef_thread_id_t;

///
// Thread priority values listed in increasing order of importance.
///
typedef enum {
  ///
  // Suitable for threads that shouldn't disrupt high priority work.
  ///
  TP_BACKGROUND,

  ///
  // Default priority level.
  ///
  TP_NORMAL,

  ///
  // Suitable for threads which generate data for the display (at ~60Hz).
  ///
  TP_DISPLAY,

  ///
  // Suitable for low-latency, glitch-resistant audio.
  ///
  TP_REALTIME_AUDIO,
} cef_thread_priority_t;

///
// Message loop types. Indicates the set of asynchronous events that a message
// loop can process.
///
typedef enum {
  ///
  // Supports tasks and timers.
  ///
  ML_TYPE_DEFAULT,

  ///
  // Supports tasks, timers and native UI events (e.g. Windows messages).
  ///
  ML_TYPE_UI,

  ///
  // Supports tasks, timers and asynchronous IO events.
  ///
  ML_TYPE_IO,
} cef_message_loop_type_t;

///
// Windows COM initialization mode. Specifies how COM will be initialized for a
// new thread.
///
typedef enum {
  ///
  // No COM initialization.
  ///
  COM_INIT_MODE_NONE,

  ///
  // Initialize COM using single-threaded apartments.
  ///
  COM_INIT_MODE_STA,

  ///
  // Initialize COM using multi-threaded apartments.
  ///
  COM_INIT_MODE_MTA,
} cef_com_init_mode_t;

///
// Supported value types.
///
typedef enum {
  VTYPE_INVALID = 0,
  VTYPE_NULL,
  VTYPE_BOOL,
  VTYPE_INT,
  VTYPE_DOUBLE,
  VTYPE_STRING,
  VTYPE_BINARY,
  VTYPE_DICTIONARY,
  VTYPE_LIST,
} cef_value_type_t;

///
// Supported JavaScript dialog types.
///
typedef enum {
  JSDIALOGTYPE_ALERT = 0,
  JSDIALOGTYPE_CONFIRM,
  JSDIALOGTYPE_PROMPT,
} cef_jsdialog_type_t;

///
// Screen orientation types.
///
typedef enum {
  UNDEFINED,
  PORTRAIT_PRIMARY,
  PORTRAIT_SECONDARY,
  LANDSCAPE_PRIMARY,
  LANDSCAPE_SECONDARY
} cef_screen_orientation_type_t;

///
// Screen information used when window rendering is disabled. This structure is
// passed as a parameter to CefRenderHandler::GetScreenInfo and should be filled
// in by the client.
///
typedef struct _cef_screen_info_t {
  ///
  // Device scale factor. Specifies the ratio between physical and logical
  // pixels.
  ///
  float device_scale_factor;

  ///
  // The screen depth in bits per pixel.
  ///
  int depth;

  ///
  // The bits per color component. This assumes that the colors are balanced
  // equally.
  ///
  int depth_per_component;

  ///
  // This can be true for black and white printers.
  ///
  int is_monochrome;

  ///
  // This is set from the rcMonitor member of MONITORINFOEX, to whit:
  //   "A RECT structure that specifies the display monitor rectangle,
  //   expressed in virtual-screen coordinates. Note that if the monitor
  //   is not the primary display monitor, some of the rectangle's
  //   coordinates may be negative values."
  //
  // The |rect| and |available_rect| properties are used to determine the
  // available surface for rendering popup views.
  ///
  cef_rect_t rect;

  ///
  // This is set from the rcWork member of MONITORINFOEX, to whit:
  //   "A RECT structure that specifies the work area rectangle of the
  //   display monitor that can be used by applications, expressed in
  //   virtual-screen coordinates. Windows uses this rectangle to
  //   maximize an application on the monitor. The rest of the area in
  //   rcMonitor contains system windows such as the task bar and side
  //   bars. Note that if the monitor is not the primary display monitor,
  //   some of the rectangle's coordinates may be negative values".
  //
  // The |rect| and |available_rect| properties are used to determine the
  // available surface for rendering popup views.
  ///
  cef_rect_t available_rect;

  ///
  // This is screen orientation angle.
  ///
  int16_t angle;

  ///
  // This is screen orientation type.
  ///
  cef_screen_orientation_type_t orientation;
} cef_screen_info_t;

///
// Supported menu IDs. Non-English translations can be provided for the
// IDS_MENU_* strings in CefResourceBundleHandler::GetLocalizedString().
///
typedef enum {
  // Navigation.
  MENU_ID_BACK = 100,
  MENU_ID_FORWARD = 101,
  MENU_ID_RELOAD = 102,
  MENU_ID_RELOAD_NOCACHE = 103,
  MENU_ID_STOPLOAD = 104,

  // Editing.
  MENU_ID_UNDO = 110,
  MENU_ID_REDO = 111,
  MENU_ID_CUT = 112,
  MENU_ID_COPY = 113,
  MENU_ID_PASTE = 114,
  MENU_ID_DELETE = 115,
  MENU_ID_SELECT_ALL = 116,

  // Miscellaneous.
  MENU_ID_FIND = 130,
  MENU_ID_PRINT = 131,
  MENU_ID_VIEW_SOURCE = 132,

  // Spell checking word correction suggestions.
  MENU_ID_SPELLCHECK_SUGGESTION_0 = 200,
  MENU_ID_SPELLCHECK_SUGGESTION_1 = 201,
  MENU_ID_SPELLCHECK_SUGGESTION_2 = 202,
  MENU_ID_SPELLCHECK_SUGGESTION_3 = 203,
  MENU_ID_SPELLCHECK_SUGGESTION_4 = 204,
  MENU_ID_SPELLCHECK_SUGGESTION_LAST = 204,
  MENU_ID_NO_SPELLING_SUGGESTIONS = 205,
  MENU_ID_ADD_TO_DICTIONARY = 206,

  // Custom menu items originating from the renderer process.
  MENU_ID_CUSTOM_FIRST = 220,
  MENU_ID_IMAGE_COPY = 221,
  MENU_ID_CUSTOM_LAST = 250,

  // All user-defined menu IDs should come between MENU_ID_USER_FIRST and
  // MENU_ID_USER_LAST to avoid overlapping the Chromium and CEF ID ranges
  // defined in the tools/gritsettings/resource_ids file.
  MENU_ID_USER_FIRST = 26500,
  MENU_ID_USER_LAST = 28500,
} cef_menu_id_t;

///
// Mouse button types.
///
typedef enum {
  MBT_LEFT = 0,
  MBT_MIDDLE,
  MBT_RIGHT,
#if BUILDFLAG(IS_OHOS)
  MBT_BACK,
  MBT_FORWARD,
#endif
} cef_mouse_button_type_t;

///
// Structure representing mouse event information.
///
typedef struct _cef_mouse_event_t {
  ///
  // X coordinate relative to the left side of the view.
  ///
  int x;

  ///
  // Y coordinate relative to the top side of the view.
  ///
  int y;

  ///
  // Bit flags describing any pressed modifier keys. See
  // cef_event_flags_t for values.
  ///
  uint32 modifiers;
} cef_mouse_event_t;

///
// Touch points states types.
///
typedef enum {
  CEF_TET_RELEASED = 0,
  CEF_TET_PRESSED,
  CEF_TET_MOVED,
  CEF_TET_CANCELLED
} cef_touch_event_type_t;

///
// The device type that caused the event.
///
typedef enum {
  CEF_POINTER_TYPE_TOUCH = 0,
  CEF_POINTER_TYPE_MOUSE,
  CEF_POINTER_TYPE_PEN,
  CEF_POINTER_TYPE_ERASER,
  CEF_POINTER_TYPE_UNKNOWN
} cef_pointer_type_t;

///
// Structure representing touch event information.
///
typedef struct _cef_touch_event_t {
  ///
  // Id of a touch point. Must be unique per touch, can be any number except -1.
  // Note that a maximum of 16 concurrent touches will be tracked; touches
  // beyond that will be ignored.
  ///
  int id;

  ///
  // X coordinate relative to the left side of the view.
  ///
  float x;

  ///
  // Y coordinate relative to the top side of the view.
  ///
  float y;

  ///
  // X radius in pixels. Set to 0 if not applicable.
  ///
  float radius_x;

  ///
  // Y radius in pixels. Set to 0 if not applicable.
  ///
  float radius_y;

  ///
  // Rotation angle in radians. Set to 0 if not applicable.
  ///
  float rotation_angle;

  ///
  // The normalized pressure of the pointer input in the range of [0,1].
  // Set to 0 if not applicable.
  ///
  float pressure;

  ///
  // The state of the touch point. Touches begin with one CEF_TET_PRESSED event
  // followed by zero or more CEF_TET_MOVED events and finally one
  // CEF_TET_RELEASED or CEF_TET_CANCELLED event. Events not respecting this
  // order will be ignored.
  ///
  cef_touch_event_type_t type;

  ///
  // Bit flags describing any pressed modifier keys. See
  // cef_event_flags_t for values.
  ///
  uint32 modifiers;

  ///
  // The device type that caused the event.
  ///
  cef_pointer_type_t pointer_type;

  ///
  // The touch is from overlay.
  ///
  bool from_overlay;
} cef_touch_event_t;

///
// Paint element types.
///
typedef enum {
  PET_VIEW = 0,
  PET_POPUP,
} cef_paint_element_type_t;

///
// Supported event bit flags.
///
typedef enum {
  EVENTFLAG_NONE = 0,
  EVENTFLAG_CAPS_LOCK_ON = 1 << 0,
  EVENTFLAG_SHIFT_DOWN = 1 << 1,
  EVENTFLAG_CONTROL_DOWN = 1 << 2,
  EVENTFLAG_ALT_DOWN = 1 << 3,
  EVENTFLAG_LEFT_MOUSE_BUTTON = 1 << 4,
  EVENTFLAG_MIDDLE_MOUSE_BUTTON = 1 << 5,
  EVENTFLAG_RIGHT_MOUSE_BUTTON = 1 << 6,
  // Mac OS-X command key.
  EVENTFLAG_COMMAND_DOWN = 1 << 7,
  EVENTFLAG_NUM_LOCK_ON = 1 << 8,
  EVENTFLAG_IS_KEY_PAD = 1 << 9,
  EVENTFLAG_IS_LEFT = 1 << 10,
  EVENTFLAG_IS_RIGHT = 1 << 11,
  EVENTFLAG_ALTGR_DOWN = 1 << 12,
  EVENTFLAG_IS_REPEAT = 1 << 13,
#if BUILDFLAG(IS_OHOS)
  EVENTFLAG_BACK_MOUSE_BUTTON = 1 << 14,
  EVENTFLAG_FORWARD_MOUSE_BUTTON = 1 << 15,
#endif
} cef_event_flags_t;

///
// Supported menu item types.
///
typedef enum {
  MENUITEMTYPE_NONE,
  MENUITEMTYPE_COMMAND,
  MENUITEMTYPE_CHECK,
  MENUITEMTYPE_RADIO,
  MENUITEMTYPE_SEPARATOR,
  MENUITEMTYPE_SUBMENU,
} cef_menu_item_type_t;

///
// Supported context menu type flags.
///
typedef enum {
  ///
  // No node is selected.
  ///
  CM_TYPEFLAG_NONE = 0,
  ///
  // The top page is selected.
  ///
  CM_TYPEFLAG_PAGE = 1 << 0,
  ///
  // A subframe page is selected.
  ///
  CM_TYPEFLAG_FRAME = 1 << 1,
  ///
  // A link is selected.
  ///
  CM_TYPEFLAG_LINK = 1 << 2,
  ///
  // A media node is selected.
  ///
  CM_TYPEFLAG_MEDIA = 1 << 3,
  ///
  // There is a textual or mixed selection that is selected.
  ///
  CM_TYPEFLAG_SELECTION = 1 << 4,
  ///
  // An editable element is selected.
  ///
  CM_TYPEFLAG_EDITABLE = 1 << 5,
} cef_context_menu_type_flags_t;

///
// Supported context menu media types. These constants match their equivalents
// in Chromium's ContextMenuDataMediaType and should not be renumbered.
///
typedef enum {
  ///
  // No special node is in context.
  ///
  CM_MEDIATYPE_NONE,
  ///
  // An image node is selected.
  ///
  CM_MEDIATYPE_IMAGE,
  ///
  // A video node is selected.
  ///
  CM_MEDIATYPE_VIDEO,
  ///
  // An audio node is selected.
  ///
  CM_MEDIATYPE_AUDIO,
  ///
  // An canvas node is selected.
  ///
  CM_MEDIATYPE_CANVAS,
  ///
  // A file node is selected.
  ///
  CM_MEDIATYPE_FILE,
  ///
  // A plugin node is selected.
  ///
  CM_MEDIATYPE_PLUGIN,
} cef_context_menu_media_type_t;

///
// Supported context menu media state bit flags. These constants match their
// equivalents in Chromium's ContextMenuData::MediaFlags and should not be
// renumbered.
///
typedef enum {
  CM_MEDIAFLAG_NONE = 0,
  CM_MEDIAFLAG_IN_ERROR = 1 << 0,
  CM_MEDIAFLAG_PAUSED = 1 << 1,
  CM_MEDIAFLAG_MUTED = 1 << 2,
  CM_MEDIAFLAG_LOOP = 1 << 3,
  CM_MEDIAFLAG_CAN_SAVE = 1 << 4,
  CM_MEDIAFLAG_HAS_AUDIO = 1 << 5,
  CM_MEDIAFLAG_CAN_TOGGLE_CONTROLS = 1 << 6,
  CM_MEDIAFLAG_CONTROLS = 1 << 7,
  CM_MEDIAFLAG_CAN_PRINT = 1 << 8,
  CM_MEDIAFLAG_CAN_ROTATE = 1 << 9,
  CM_MEDIAFLAG_CAN_PICTURE_IN_PICTURE = 1 << 10,
  CM_MEDIAFLAG_PICTURE_IN_PICTURE = 1 << 11,
  CM_MEDIAFLAG_CAN_LOOP = 1 << 12,
} cef_context_menu_media_state_flags_t;

///
// Supported context menu edit state bit flags. These constants match their
// equivalents in Chromium's ContextMenuDataEditFlags and should not be
// renumbered.
///
typedef enum {
  CM_EDITFLAG_NONE = 0,
  CM_EDITFLAG_CAN_UNDO = 1 << 0,
  CM_EDITFLAG_CAN_REDO = 1 << 1,
  CM_EDITFLAG_CAN_CUT = 1 << 2,
  CM_EDITFLAG_CAN_COPY = 1 << 3,
  CM_EDITFLAG_CAN_PASTE = 1 << 4,
  CM_EDITFLAG_CAN_DELETE = 1 << 5,
  CM_EDITFLAG_CAN_SELECT_ALL = 1 << 6,
  CM_EDITFLAG_CAN_TRANSLATE = 1 << 7,
  CM_EDITFLAG_CAN_EDIT_RICHLY = 1 << 8,
} cef_context_menu_edit_state_flags_t;

///
// Supported quick menu state bit flags.
///
typedef enum {
  QM_EDITFLAG_NONE = 0,
  QM_EDITFLAG_CAN_ELLIPSIS = 1 << 0,
  QM_EDITFLAG_CAN_CUT = 1 << 1,
  QM_EDITFLAG_CAN_COPY = 1 << 2,
  QM_EDITFLAG_CAN_PASTE = 1 << 3,
  QM_EDITFLAG_CAN_SELECT_ALL = 1 << 4,
} cef_quick_menu_edit_state_flags_t;

///
// Key event types.
///
typedef enum {
  ///
  // Notification that a key transitioned from "up" to "down".
  ///
  KEYEVENT_RAWKEYDOWN = 0,

  ///
  // Notification that a key was pressed. This does not necessarily correspond
  // to a character depending on the key and language. Use KEYEVENT_CHAR for
  // character input.
  ///
  KEYEVENT_KEYDOWN,

  ///
  // Notification that a key was released.
  ///
  KEYEVENT_KEYUP,

  ///
  // Notification that a character was typed. Use this for text input. Key
  // down events may generate 0, 1, or more than one character event depending
  // on the key, locale, and operating system.
  ///
  KEYEVENT_CHAR
} cef_key_event_type_t;

///
// Structure representing keyboard event information.
///
typedef struct _cef_key_event_t {
  ///
  // The type of keyboard event.
  ///
  cef_key_event_type_t type;

  ///
  // Bit flags describing any pressed modifier keys. See
  // cef_event_flags_t for values.
  ///
  uint32 modifiers;

  ///
  // The Windows key code for the key event. This value is used by the DOM
  // specification. Sometimes it comes directly from the event (i.e. on
  // Windows) and sometimes it's determined using a mapping function. See
  // WebCore/platform/chromium/KeyboardCodes.h for the list of values.
  ///
  int windows_key_code;

  ///
  // The actual key code genenerated by the platform.
  ///
  int native_key_code;

  ///
  // Indicates whether the event is considered a "system key" event (see
  // http://msdn.microsoft.com/en-us/library/ms646286(VS.85).aspx for details).
  // This value will always be false on non-Windows platforms.
  ///
  int is_system_key;

  ///
  // The character generated by the keystroke.
  ///
  char16 character;

  ///
  // Same as |character| but unmodified by any concurrently-held modifiers
  // (except shift). This is useful for working out shortcut keys.
  ///
  char16 unmodified_character;

  ///
  // True if the focus is currently on an editable field on the page. This is
  // useful for determining if standard key events should be intercepted.
  ///
  int focus_on_editable_field;
} cef_key_event_t;

///
// Focus sources.
///
typedef enum {
  ///
  // The source is explicit navigation via the API (LoadURL(), etc).
  ///
  FOCUS_SOURCE_NAVIGATION = 0,
  ///
  // The source is a system-generated focus event.
  ///
  FOCUS_SOURCE_SYSTEM,
} cef_focus_source_t;

///
// Navigation types.
///
typedef enum {
  NAVIGATION_LINK_CLICKED = 0,
  NAVIGATION_FORM_SUBMITTED,
  NAVIGATION_BACK_FORWARD,
  NAVIGATION_RELOAD,
  NAVIGATION_FORM_RESUBMITTED,
  NAVIGATION_OTHER,
} cef_navigation_type_t;

///
// Supported XML encoding types. The parser supports ASCII, ISO-8859-1, and
// UTF16 (LE and BE) by default. All other types must be translated to UTF8
// before being passed to the parser. If a BOM is detected and the correct
// decoder is available then that decoder will be used automatically.
///
typedef enum {
  XML_ENCODING_NONE = 0,
  XML_ENCODING_UTF8,
  XML_ENCODING_UTF16LE,
  XML_ENCODING_UTF16BE,
  XML_ENCODING_ASCII,
} cef_xml_encoding_type_t;

///
// XML node types.
///
typedef enum {
  XML_NODE_UNSUPPORTED = 0,
  XML_NODE_PROCESSING_INSTRUCTION,
  XML_NODE_DOCUMENT_TYPE,
  XML_NODE_ELEMENT_START,
  XML_NODE_ELEMENT_END,
  XML_NODE_ATTRIBUTE,
  XML_NODE_TEXT,
  XML_NODE_CDATA,
  XML_NODE_ENTITY_REFERENCE,
  XML_NODE_WHITESPACE,
  XML_NODE_COMMENT,
} cef_xml_node_type_t;

///
// Popup window features.
///
typedef struct _cef_popup_features_t {
  int x;
  int xSet;
  int y;
  int ySet;
  int width;
  int widthSet;
  int height;
  int heightSet;

  int menuBarVisible;
  int statusBarVisible;
  int toolBarVisible;
  int scrollbarsVisible;
} cef_popup_features_t;

///
// DOM document types.
///
typedef enum {
  DOM_DOCUMENT_TYPE_UNKNOWN = 0,
  DOM_DOCUMENT_TYPE_HTML,
  DOM_DOCUMENT_TYPE_XHTML,
  DOM_DOCUMENT_TYPE_PLUGIN,
} cef_dom_document_type_t;

///
// DOM event category flags.
///
typedef enum {
  DOM_EVENT_CATEGORY_UNKNOWN = 0x0,
  DOM_EVENT_CATEGORY_UI = 0x1,
  DOM_EVENT_CATEGORY_MOUSE = 0x2,
  DOM_EVENT_CATEGORY_MUTATION = 0x4,
  DOM_EVENT_CATEGORY_KEYBOARD = 0x8,
  DOM_EVENT_CATEGORY_TEXT = 0x10,
  DOM_EVENT_CATEGORY_COMPOSITION = 0x20,
  DOM_EVENT_CATEGORY_DRAG = 0x40,
  DOM_EVENT_CATEGORY_CLIPBOARD = 0x80,
  DOM_EVENT_CATEGORY_MESSAGE = 0x100,
  DOM_EVENT_CATEGORY_WHEEL = 0x200,
  DOM_EVENT_CATEGORY_BEFORE_TEXT_INSERTED = 0x400,
  DOM_EVENT_CATEGORY_OVERFLOW = 0x800,
  DOM_EVENT_CATEGORY_PAGE_TRANSITION = 0x1000,
  DOM_EVENT_CATEGORY_POPSTATE = 0x2000,
  DOM_EVENT_CATEGORY_PROGRESS = 0x4000,
  DOM_EVENT_CATEGORY_XMLHTTPREQUEST_PROGRESS = 0x8000,
} cef_dom_event_category_t;

///
// DOM event processing phases.
///
typedef enum {
  DOM_EVENT_PHASE_UNKNOWN = 0,
  DOM_EVENT_PHASE_CAPTURING,
  DOM_EVENT_PHASE_AT_TARGET,
  DOM_EVENT_PHASE_BUBBLING,
} cef_dom_event_phase_t;

///
// DOM node types.
///
typedef enum {
  DOM_NODE_TYPE_UNSUPPORTED = 0,
  DOM_NODE_TYPE_ELEMENT,
  DOM_NODE_TYPE_ATTRIBUTE,
  DOM_NODE_TYPE_TEXT,
  DOM_NODE_TYPE_CDATA_SECTION,
  DOM_NODE_TYPE_PROCESSING_INSTRUCTIONS,
  DOM_NODE_TYPE_COMMENT,
  DOM_NODE_TYPE_DOCUMENT,
  DOM_NODE_TYPE_DOCUMENT_TYPE,
  DOM_NODE_TYPE_DOCUMENT_FRAGMENT,
} cef_dom_node_type_t;

///
// Supported file dialog modes.
///
typedef enum {
  ///
  // Requires that the file exists before allowing the user to pick it.
  ///
  FILE_DIALOG_OPEN = 0,

  ///
  // Like Open, but allows picking multiple files to open.
  ///
  FILE_DIALOG_OPEN_MULTIPLE,

  ///
  // Like Open, but selects a folder to open.
  ///
  FILE_DIALOG_OPEN_FOLDER,

  ///
  // Allows picking a nonexistent file, and prompts to overwrite if the file
  // already exists.
  ///
  FILE_DIALOG_SAVE,

  ///
  // General mask defining the bits used for the type values.
  ///
  FILE_DIALOG_TYPE_MASK = 0xFF,

  // Qualifiers.
  // Any of the type values above can be augmented by one or more qualifiers.
  // These qualifiers further define the dialog behavior.

  ///
  // Prompt to overwrite if the user selects an existing file with the Save
  // dialog.
  ///
  FILE_DIALOG_OVERWRITEPROMPT_FLAG = 0x01000000,

  ///
  // Do not display read-only files.
  ///
  FILE_DIALOG_HIDEREADONLY_FLAG = 0x02000000,
} cef_file_dialog_mode_t;

///
// Print job color mode values.
///
typedef enum {
  COLOR_MODEL_UNKNOWN,
  COLOR_MODEL_GRAY,
  COLOR_MODEL_COLOR,
  COLOR_MODEL_CMYK,
  COLOR_MODEL_CMY,
  COLOR_MODEL_KCMY,
  COLOR_MODEL_CMY_K,  // CMY_K represents CMY+K.
  COLOR_MODEL_BLACK,
  COLOR_MODEL_GRAYSCALE,
  COLOR_MODEL_RGB,
  COLOR_MODEL_RGB16,
  COLOR_MODEL_RGBA,
  COLOR_MODEL_COLORMODE_COLOR,              // Used in samsung printer ppds.
  COLOR_MODEL_COLORMODE_MONOCHROME,         // Used in samsung printer ppds.
  COLOR_MODEL_HP_COLOR_COLOR,               // Used in HP color printer ppds.
  COLOR_MODEL_HP_COLOR_BLACK,               // Used in HP color printer ppds.
  COLOR_MODEL_PRINTOUTMODE_NORMAL,          // Used in foomatic ppds.
  COLOR_MODEL_PRINTOUTMODE_NORMAL_GRAY,     // Used in foomatic ppds.
  COLOR_MODEL_PROCESSCOLORMODEL_CMYK,       // Used in canon printer ppds.
  COLOR_MODEL_PROCESSCOLORMODEL_GREYSCALE,  // Used in canon printer ppds.
  COLOR_MODEL_PROCESSCOLORMODEL_RGB,        // Used in canon printer ppds
} cef_color_model_t;

///
// Print job duplex mode values.
///
typedef enum {
  DUPLEX_MODE_UNKNOWN = -1,
  DUPLEX_MODE_SIMPLEX,
  DUPLEX_MODE_LONG_EDGE,
  DUPLEX_MODE_SHORT_EDGE,
} cef_duplex_mode_t;

///
// Cursor type values.
///
typedef enum {
  CT_POINTER = 0,
  CT_CROSS,
  CT_HAND,
  CT_IBEAM,
  CT_WAIT,
  CT_HELP,
  CT_EASTRESIZE,
  CT_NORTHRESIZE,
  CT_NORTHEASTRESIZE,
  CT_NORTHWESTRESIZE,
  CT_SOUTHRESIZE,
  CT_SOUTHEASTRESIZE,
  CT_SOUTHWESTRESIZE,
  CT_WESTRESIZE,
  CT_NORTHSOUTHRESIZE,
  CT_EASTWESTRESIZE,
  CT_NORTHEASTSOUTHWESTRESIZE,
  CT_NORTHWESTSOUTHEASTRESIZE,
  CT_COLUMNRESIZE,
  CT_ROWRESIZE,
  CT_MIDDLEPANNING,
  CT_EASTPANNING,
  CT_NORTHPANNING,
  CT_NORTHEASTPANNING,
  CT_NORTHWESTPANNING,
  CT_SOUTHPANNING,
  CT_SOUTHEASTPANNING,
  CT_SOUTHWESTPANNING,
  CT_WESTPANNING,
  CT_MOVE,
  CT_VERTICALTEXT,
  CT_CELL,
  CT_CONTEXTMENU,
  CT_ALIAS,
  CT_PROGRESS,
  CT_NODROP,
  CT_COPY,
  CT_NONE,
  CT_NOTALLOWED,
  CT_ZOOMIN,
  CT_ZOOMOUT,
  CT_GRAB,
  CT_GRABBING,
  CT_MIDDLE_PANNING_VERTICAL,
  CT_MIDDLE_PANNING_HORIZONTAL,
  CT_CUSTOM,
  CT_DND_NONE,
  CT_DND_MOVE,
  CT_DND_COPY,
  CT_DND_LINK,
} cef_cursor_type_t;

///
// Structure representing cursor information. |buffer| will be
// |size.width|*|size.height|*4 bytes in size and represents a BGRA image with
// an upper-left origin.
///
typedef struct _cef_cursor_info_t {
  cef_point_t hotspot;
  float image_scale_factor;
  void* buffer;
  cef_size_t size;
} cef_cursor_info_t;

///
// URI unescape rules passed to CefURIDecode().
///
typedef enum {
  ///
  // Don't unescape anything at all.
  ///
  UU_NONE = 0,

  ///
  // Don't unescape anything special, but all normal unescaping will happen.
  // This is a placeholder and can't be combined with other flags (since it's
  // just the absence of them). All other unescape rules imply "normal" in
  // addition to their special meaning. Things like escaped letters, digits,
  // and most symbols will get unescaped with this mode.
  ///
  UU_NORMAL = 1 << 0,

  ///
  // Convert %20 to spaces. In some places where we're showing URLs, we may
  // want this. In places where the URL may be copied and pasted out, then
  // you wouldn't want this since it might not be interpreted in one piece
  // by other applications.
  ///
  UU_SPACES = 1 << 1,

  ///
  // Unescapes '/' and '\\'. If these characters were unescaped, the resulting
  // URL won't be the same as the source one. Moreover, they are dangerous to
  // unescape in strings that will be used as file paths or names. This value
  // should only be used when slashes don't have special meaning, like data
  // URLs.
  ///
  UU_PATH_SEPARATORS = 1 << 2,

  ///
  // Unescapes various characters that will change the meaning of URLs,
  // including '%', '+', '&', '#'. Does not unescape path separators.
  // If these characters were unescaped, the resulting URL won't be the same
  // as the source one. This flag is used when generating final output like
  // filenames for URLs where we won't be interpreting as a URL and want to do
  // as much unescaping as possible.
  ///
  UU_URL_SPECIAL_CHARS_EXCEPT_PATH_SEPARATORS = 1 << 3,

  ///
  // URL queries use "+" for space. This flag controls that replacement.
  ///
  UU_REPLACE_PLUS_WITH_SPACE = 1 << 4,
} cef_uri_unescape_rule_t;

///
// Options that can be passed to CefParseJSON.
///
typedef enum {
  ///
  // Parses the input strictly according to RFC 4627. See comments in Chromium's
  // base/json/json_reader.h file for known limitations/deviations from the RFC.
  ///
  JSON_PARSER_RFC = 0,

  ///
  // Allows commas to exist after the last element in structures.
  ///
  JSON_PARSER_ALLOW_TRAILING_COMMAS = 1 << 0,
} cef_json_parser_options_t;

///
// Options that can be passed to CefWriteJSON.
///
typedef enum {
  ///
  // Default behavior.
  ///
  JSON_WRITER_DEFAULT = 0,

  ///
  // This option instructs the writer that if a Binary value is encountered,
  // the value (and key if within a dictionary) will be omitted from the
  // output, and success will be returned. Otherwise, if a binary value is
  // encountered, failure will be returned.
  ///
  JSON_WRITER_OMIT_BINARY_VALUES = 1 << 0,

  ///
  // This option instructs the writer to write doubles that have no fractional
  // part as a normal integer (i.e., without using exponential notation
  // or appending a '.0') as long as the value is within the range of a
  // 64-bit int.
  ///
  JSON_WRITER_OMIT_DOUBLE_TYPE_PRESERVATION = 1 << 1,

  ///
  // Return a slightly nicer formatted json string (pads with whitespace to
  // help with readability).
  ///
  JSON_WRITER_PRETTY_PRINT = 1 << 2,
} cef_json_writer_options_t;

///
// Margin type for PDF printing.
///
typedef enum {
  ///
  // Default margins.
  ///
  PDF_PRINT_MARGIN_DEFAULT,

  ///
  // No margins.
  ///
  PDF_PRINT_MARGIN_NONE,

  ///
  // Minimum margins.
  ///
  PDF_PRINT_MARGIN_MINIMUM,

  ///
  // Custom margins using the |margin_*| values from cef_pdf_print_settings_t.
  ///
  PDF_PRINT_MARGIN_CUSTOM,
} cef_pdf_print_margin_type_t;

///
// Structure representing PDF print settings.
///
typedef struct _cef_pdf_print_settings_t {
  ///
  // Page title to display in the header. Only used if |header_footer_enabled|
  // is set to true (1).
  ///
  cef_string_t header_footer_title;

  ///
  // URL to display in the footer. Only used if |header_footer_enabled| is set
  // to true (1).
  ///
  cef_string_t header_footer_url;

  ///
  // Output page size in microns. If either of these values is less than or
  // equal to zero then the default paper size (A4) will be used.
  ///
  int page_width;
  int page_height;

  ///
  // The percentage to scale the PDF by before printing (e.g. 50 is 50%).
  // If this value is less than or equal to zero the default value of 100
  // will be used.
  ///
  int scale_factor;

  ///
  // Margins in points. Only used if |margin_type| is set to
  // PDF_PRINT_MARGIN_CUSTOM.
  ///
  int margin_top;
  int margin_right;
  int margin_bottom;
  int margin_left;

  ///
  // Margin type.
  ///
  cef_pdf_print_margin_type_t margin_type;

  ///
  // Set to true (1) to print headers and footers or false (0) to not print
  // headers and footers.
  ///
  int header_footer_enabled;

  ///
  // Set to true (1) to print the selection only or false (0) to print all.
  ///
  int selection_only;

  ///
  // Set to true (1) for landscape mode or false (0) for portrait mode.
  ///
  int landscape;

  ///
  // Set to true (1) to print background graphics or false (0) to not print
  // background graphics.
  ///
  int backgrounds_enabled;

} cef_pdf_print_settings_t;

///
// Supported UI scale factors for the platform. SCALE_FACTOR_NONE is used for
// density independent resources such as string, html/js files or an image that
// can be used for any scale factors (such as wallpapers).
///
typedef enum {
  SCALE_FACTOR_NONE = 0,
  SCALE_FACTOR_100P,
  SCALE_FACTOR_125P,
  SCALE_FACTOR_133P,
  SCALE_FACTOR_140P,
  SCALE_FACTOR_150P,
  SCALE_FACTOR_180P,
  SCALE_FACTOR_200P,
  SCALE_FACTOR_250P,
  SCALE_FACTOR_300P,
} cef_scale_factor_t;

///
// Plugin policies supported by CefRequestContextHandler::OnBeforePluginLoad.
///
typedef enum {
  ///
  // Allow the content.
  ///
  PLUGIN_POLICY_ALLOW,

  ///
  // Allow important content and block unimportant content based on heuristics.
  // The user can manually load blocked content.
  ///
  PLUGIN_POLICY_DETECT_IMPORTANT,

  ///
  // Block the content. The user can manually load blocked content.
  ///
  PLUGIN_POLICY_BLOCK,

  ///
  // Disable the content. The user cannot load disabled content.
  ///
  PLUGIN_POLICY_DISABLE,
} cef_plugin_policy_t;

///
// Policy for how the Referrer HTTP header value will be sent during navigation.
// If the `--no-referrers` command-line flag is specified then the policy value
// will be ignored and the Referrer value will never be sent.
// Must be kept synchronized with net::URLRequest::ReferrerPolicy from Chromium.
///
typedef enum {
  ///
  // Clear the referrer header if the header value is HTTPS but the request
  // destination is HTTP. This is the default behavior.
  ///
  REFERRER_POLICY_CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
  REFERRER_POLICY_DEFAULT =
      REFERRER_POLICY_CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,

  ///
  // A slight variant on CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE:
  // If the request destination is HTTP, an HTTPS referrer will be cleared. If
  // the request's destination is cross-origin with the referrer (but does not
  // downgrade), the referrer's granularity will be stripped down to an origin
  // rather than a full URL. Same-origin requests will send the full referrer.
  ///
  REFERRER_POLICY_REDUCE_REFERRER_GRANULARITY_ON_TRANSITION_CROSS_ORIGIN,

  ///
  // Strip the referrer down to an origin when the origin of the referrer is
  // different from the destination's origin.
  ///
  REFERRER_POLICY_ORIGIN_ONLY_ON_TRANSITION_CROSS_ORIGIN,

  ///
  // Never change the referrer.
  ///
  REFERRER_POLICY_NEVER_CLEAR_REFERRER,

  ///
  // Strip the referrer down to the origin regardless of the redirect location.
  ///
  REFERRER_POLICY_ORIGIN,

  ///
  // Clear the referrer when the request's referrer is cross-origin with the
  // request's destination.
  ///
  REFERRER_POLICY_CLEAR_REFERRER_ON_TRANSITION_CROSS_ORIGIN,

  ///
  // Strip the referrer down to the origin, but clear it entirely if the
  // referrer value is HTTPS and the destination is HTTP.
  ///
  REFERRER_POLICY_ORIGIN_CLEAR_ON_TRANSITION_FROM_SECURE_TO_INSECURE,

  ///
  // Always clear the referrer regardless of the request destination.
  ///
  REFERRER_POLICY_NO_REFERRER,

  // Always the last value in this enumeration.
  REFERRER_POLICY_LAST_VALUE = REFERRER_POLICY_NO_REFERRER,
} cef_referrer_policy_t;

///
// Return values for CefResponseFilter::Filter().
///
typedef enum {
  ///
  // Some or all of the pre-filter data was read successfully but more data is
  // needed in order to continue filtering (filtered output is pending).
  ///
  RESPONSE_FILTER_NEED_MORE_DATA,

  ///
  // Some or all of the pre-filter data was read successfully and all available
  // filtered output has been written.
  ///
  RESPONSE_FILTER_DONE,

  ///
  // An error occurred during filtering.
  ///
  RESPONSE_FILTER_ERROR
} cef_response_filter_status_t;

///
// Describes how to interpret the components of a pixel.
///
typedef enum {
  ///
  // RGBA with 8 bits per pixel (32bits total).
  ///
  CEF_COLOR_TYPE_RGBA_8888,

  ///
  // BGRA with 8 bits per pixel (32bits total).
  ///
  CEF_COLOR_TYPE_BGRA_8888,

  ///
  // Unknown color type.
  ///
  CEF_COLOR_TYPE_UNKNOWN,
} cef_color_type_t;

///
// Describes how to interpret the alpha component of a pixel.
///
typedef enum {
  ///
  // No transparency. The alpha component is ignored.
  ///
  CEF_ALPHA_TYPE_OPAQUE,

  ///
  // Transparency with pre-multiplied alpha component.
  ///
  CEF_ALPHA_TYPE_PREMULTIPLIED,

  ///
  // Transparency with post-multiplied alpha component.
  ///
  CEF_ALPHA_TYPE_POSTMULTIPLIED,

  ///
  // Unknown alpha type.
  ///
  CEF_ALPHA_TYPE_UNKNOWN,
} cef_alpha_type_t;

///
// Text style types. Should be kepy in sync with gfx::TextStyle.
///
typedef enum {
  CEF_TEXT_STYLE_BOLD,
  CEF_TEXT_STYLE_ITALIC,
  CEF_TEXT_STYLE_STRIKE,
  CEF_TEXT_STYLE_DIAGONAL_STRIKE,
  CEF_TEXT_STYLE_UNDERLINE,
} cef_text_style_t;

///
// Specifies where along the main axis the CefBoxLayout child views should be
// laid out.
///
typedef enum {
  ///
  // Child views will be left-aligned.
  ///
  CEF_MAIN_AXIS_ALIGNMENT_START,

  ///
  // Child views will be center-aligned.
  ///
  CEF_MAIN_AXIS_ALIGNMENT_CENTER,

  ///
  // Child views will be right-aligned.
  ///
  CEF_MAIN_AXIS_ALIGNMENT_END,
} cef_main_axis_alignment_t;

///
// Specifies where along the cross axis the CefBoxLayout child views should be
// laid out.
///
typedef enum {
  ///
  // Child views will be stretched to fit.
  ///
  CEF_CROSS_AXIS_ALIGNMENT_STRETCH,

  ///
  // Child views will be left-aligned.
  ///
  CEF_CROSS_AXIS_ALIGNMENT_START,

  ///
  // Child views will be center-aligned.
  ///
  CEF_CROSS_AXIS_ALIGNMENT_CENTER,

  ///
  // Child views will be right-aligned.
  ///
  CEF_CROSS_AXIS_ALIGNMENT_END,
} cef_cross_axis_alignment_t;

///
// Settings used when initializing a CefBoxLayout.
///
typedef struct _cef_box_layout_settings_t {
  ///
  // If true (1) the layout will be horizontal, otherwise the layout will be
  // vertical.
  ///
  int horizontal;

  ///
  // Adds additional horizontal space between the child view area and the host
  // view border.
  ///
  int inside_border_horizontal_spacing;

  ///
  // Adds additional vertical space between the child view area and the host
  // view border.
  ///
  int inside_border_vertical_spacing;

  ///
  // Adds additional space around the child view area.
  ///
  cef_insets_t inside_border_insets;

  ///
  // Adds additional space between child views.
  ///
  int between_child_spacing;

  ///
  // Specifies where along the main axis the child views should be laid out.
  ///
  cef_main_axis_alignment_t main_axis_alignment;

  ///
  // Specifies where along the cross axis the child views should be laid out.
  ///
  cef_cross_axis_alignment_t cross_axis_alignment;

  ///
  // Minimum cross axis size.
  ///
  int minimum_cross_axis_size;

  ///
  // Default flex for views when none is specified via CefBoxLayout methods.
  // Using the preferred size as the basis, free space along the main axis is
  // distributed to views in the ratio of their flex weights. Similarly, if the
  // views will overflow the parent, space is subtracted in these ratios. A flex
  // of 0 means this view is not resized. Flex values must not be negative.
  ///
  int default_flex;
} cef_box_layout_settings_t;

///
// Specifies the button display state.
///
typedef enum {
  CEF_BUTTON_STATE_NORMAL,
  CEF_BUTTON_STATE_HOVERED,
  CEF_BUTTON_STATE_PRESSED,
  CEF_BUTTON_STATE_DISABLED,
} cef_button_state_t;

///
// Specifies the horizontal text alignment mode.
///
typedef enum {
  ///
  // Align the text's left edge with that of its display area.
  ///
  CEF_HORIZONTAL_ALIGNMENT_LEFT,

  ///
  // Align the text's center with that of its display area.
  ///
  CEF_HORIZONTAL_ALIGNMENT_CENTER,

  ///
  // Align the text's right edge with that of its display area.
  ///
  CEF_HORIZONTAL_ALIGNMENT_RIGHT,

  ///
  // Undefined align.
  ///
  CEF_HORIZONTAL_ALIGNMENT_UNDEFINED,
} cef_horizontal_alignment_t;

///
// Specifies how a menu will be anchored for non-RTL languages. The opposite
// position will be used for RTL languages.
///
typedef enum {
  CEF_MENU_ANCHOR_TOPLEFT,
  CEF_MENU_ANCHOR_TOPRIGHT,
  CEF_MENU_ANCHOR_BOTTOMCENTER,
} cef_menu_anchor_position_t;

///
// Supported color types for menu items.
///
typedef enum {
  CEF_MENU_COLOR_TEXT,
  CEF_MENU_COLOR_TEXT_HOVERED,
  CEF_MENU_COLOR_TEXT_ACCELERATOR,
  CEF_MENU_COLOR_TEXT_ACCELERATOR_HOVERED,
  CEF_MENU_COLOR_BACKGROUND,
  CEF_MENU_COLOR_BACKGROUND_HOVERED,
  CEF_MENU_COLOR_COUNT,
} cef_menu_color_type_t;

// Supported SSL version values. See net/ssl/ssl_connection_status_flags.h
// for more information.
typedef enum {
  SSL_CONNECTION_VERSION_UNKNOWN = 0,  // Unknown SSL version.
  SSL_CONNECTION_VERSION_SSL2 = 1,
  SSL_CONNECTION_VERSION_SSL3 = 2,
  SSL_CONNECTION_VERSION_TLS1 = 3,
  SSL_CONNECTION_VERSION_TLS1_1 = 4,
  SSL_CONNECTION_VERSION_TLS1_2 = 5,
  SSL_CONNECTION_VERSION_TLS1_3 = 6,
  SSL_CONNECTION_VERSION_QUIC = 7,
} cef_ssl_version_t;

// Supported SSL content status flags. See content/public/common/ssl_status.h
// for more information.
typedef enum {
  SSL_CONTENT_NORMAL_CONTENT = 0,
  SSL_CONTENT_DISPLAYED_INSECURE_CONTENT = 1 << 0,
  SSL_CONTENT_RAN_INSECURE_CONTENT = 1 << 1,
} cef_ssl_content_status_t;

//
// Configuration options for registering a custom scheme.
// These values are used when calling AddCustomScheme.
//
typedef enum {
  CEF_SCHEME_OPTION_NONE = 0,

  ///
  // If CEF_SCHEME_OPTION_STANDARD is set the scheme will be treated as a
  // standard scheme. Standard schemes are subject to URL canonicalization and
  // parsing rules as defined in the Common Internet Scheme Syntax RFC 1738
  // Section 3.1 available at http://www.ietf.org/rfc/rfc1738.txt
  //
  // In particular, the syntax for standard scheme URLs must be of the form:
  // <pre>
  //  [scheme]://[username]:[password]@[host]:[port]/[url-path]
  // </pre> Standard scheme URLs must have a host component that is a fully
  // qualified domain name as defined in Section 3.5 of RFC 1034 [13] and
  // Section 2.1 of RFC 1123. These URLs will be canonicalized to
  // "scheme://host/path" in the simplest case and
  // "scheme://username:password@host:port/path" in the most explicit case. For
  // example, "scheme:host/path" and "scheme:///host/path" will both be
  // canonicalized to "scheme://host/path". The origin of a standard scheme URL
  // is the combination of scheme, host and port (i.e., "scheme://host:port" in
  // the most explicit case).
  //
  // For non-standard scheme URLs only the "scheme:" component is parsed and
  // canonicalized. The remainder of the URL will be passed to the handler as-
  // is. For example, "scheme:///some%20text" will remain the same. Non-standard
  // scheme URLs cannot be used as a target for form submission.
  ///
  CEF_SCHEME_OPTION_STANDARD = 1 << 0,

  ///
  // If CEF_SCHEME_OPTION_LOCAL is set the scheme will be treated with the same
  // security rules as those applied to "file" URLs. Normal pages cannot link to
  // or access local URLs. Also, by default, local URLs can only perform
  // XMLHttpRequest calls to the same URL (origin + path) that originated the
  // request. To allow XMLHttpRequest calls from a local URL to other URLs with
  // the same origin set the CefSettings.file_access_from_file_urls_allowed
  // value to true (1). To allow XMLHttpRequest calls from a local URL to all
  // origins set the CefSettings.universal_access_from_file_urls_allowed value
  // to true (1).
  ///
  CEF_SCHEME_OPTION_LOCAL = 1 << 1,

  ///
  // If CEF_SCHEME_OPTION_DISPLAY_ISOLATED is set the scheme can only be
  // displayed from other content hosted with the same scheme. For example,
  // pages in other origins cannot create iframes or hyperlinks to URLs with the
  // scheme. For schemes that must be accessible from other schemes don't set
  // this, set CEF_SCHEME_OPTION_CORS_ENABLED, and use CORS
  // "Access-Control-Allow-Origin" headers to further restrict access.
  ///
  CEF_SCHEME_OPTION_DISPLAY_ISOLATED = 1 << 2,

  ///
  // If CEF_SCHEME_OPTION_SECURE is set the scheme will be treated with the same
  // security rules as those applied to "https" URLs. For example, loading this
  // scheme from other secure schemes will not trigger mixed content warnings.
  ///
  CEF_SCHEME_OPTION_SECURE = 1 << 3,

  ///
  // If CEF_SCHEME_OPTION_CORS_ENABLED is set the scheme can be sent CORS
  // requests. This value should be set in most cases where
  // CEF_SCHEME_OPTION_STANDARD is set.
  ///
  CEF_SCHEME_OPTION_CORS_ENABLED = 1 << 4,

  ///
  // If CEF_SCHEME_OPTION_CSP_BYPASSING is set the scheme can bypass Content-
  // Security-Policy (CSP) checks. This value should not be set in most cases
  // where CEF_SCHEME_OPTION_STANDARD is set.
  ///
  CEF_SCHEME_OPTION_CSP_BYPASSING = 1 << 5,

  ///
  // If CEF_SCHEME_OPTION_FETCH_ENABLED is set the scheme can perform Fetch API
  // requests.
  ///
  CEF_SCHEME_OPTION_FETCH_ENABLED = 1 << 6,
} cef_scheme_options_t;

///
// Structure representing a range.
///
typedef struct _cef_range_t {
  int from;
  int to;
} cef_range_t;

///
// Composition underline style.
///
typedef enum {
  CEF_CUS_SOLID,
  CEF_CUS_DOT,
  CEF_CUS_DASH,
  CEF_CUS_NONE,
} cef_composition_underline_style_t;

///
// Structure representing IME composition underline information. This is a thin
// wrapper around Blink's WebCompositionUnderline class and should be kept in
// sync with that.
///
typedef struct _cef_composition_underline_t {
  ///
  // Underline character range.
  ///
  cef_range_t range;

  ///
  // Text color.
  ///
  cef_color_t color;

  ///
  // Background color.
  ///
  cef_color_t background_color;

  ///
  // Set to true (1) for thick underline.
  ///
  int thick;

  ///
  // Style.
  ///
  cef_composition_underline_style_t style;
} cef_composition_underline_t;

///
// Enumerates the various representations of the ordering of audio channels.
// Must be kept synchronized with media::ChannelLayout from Chromium.
// See media\base\channel_layout.h
///
typedef enum {
  CEF_CHANNEL_LAYOUT_NONE = 0,
  CEF_CHANNEL_LAYOUT_UNSUPPORTED = 1,

  // Front C
  CEF_CHANNEL_LAYOUT_MONO = 2,

  // Front L, Front R
  CEF_CHANNEL_LAYOUT_STEREO = 3,

  // Front L, Front R, Back C
  CEF_CHANNEL_LAYOUT_2_1 = 4,

  // Front L, Front R, Front C
  CEF_CHANNEL_LAYOUT_SURROUND = 5,

  // Front L, Front R, Front C, Back C
  CEF_CHANNEL_LAYOUT_4_0 = 6,

  // Front L, Front R, Side L, Side R
  CEF_CHANNEL_LAYOUT_2_2 = 7,

  // Front L, Front R, Back L, Back R
  CEF_CHANNEL_LAYOUT_QUAD = 8,

  // Front L, Front R, Front C, Side L, Side R
  CEF_CHANNEL_LAYOUT_5_0 = 9,

  // Front L, Front R, Front C, LFE, Side L, Side R
  CEF_CHANNEL_LAYOUT_5_1 = 10,

  // Front L, Front R, Front C, Back L, Back R
  CEF_CHANNEL_LAYOUT_5_0_BACK = 11,

  // Front L, Front R, Front C, LFE, Back L, Back R
  CEF_CHANNEL_LAYOUT_5_1_BACK = 12,

  // Front L, Front R, Front C, Side L, Side R, Back L, Back R
  CEF_CHANNEL_LAYOUT_7_0 = 13,

  // Front L, Front R, Front C, LFE, Side L, Side R, Back L, Back R
  CEF_CHANNEL_LAYOUT_7_1 = 14,

  // Front L, Front R, Front C, LFE, Side L, Side R, Front LofC, Front RofC
  CEF_CHANNEL_LAYOUT_7_1_WIDE = 15,

  // Stereo L, Stereo R
  CEF_CHANNEL_LAYOUT_STEREO_DOWNMIX = 16,

  // Stereo L, Stereo R, LFE
  CEF_CHANNEL_LAYOUT_2POINT1 = 17,

  // Stereo L, Stereo R, Front C, LFE
  CEF_CHANNEL_LAYOUT_3_1 = 18,

  // Stereo L, Stereo R, Front C, Rear C, LFE
  CEF_CHANNEL_LAYOUT_4_1 = 19,

  // Stereo L, Stereo R, Front C, Side L, Side R, Back C
  CEF_CHANNEL_LAYOUT_6_0 = 20,

  // Stereo L, Stereo R, Side L, Side R, Front LofC, Front RofC
  CEF_CHANNEL_LAYOUT_6_0_FRONT = 21,

  // Stereo L, Stereo R, Front C, Rear L, Rear R, Rear C
  CEF_CHANNEL_LAYOUT_HEXAGONAL = 22,

  // Stereo L, Stereo R, Front C, LFE, Side L, Side R, Rear Center
  CEF_CHANNEL_LAYOUT_6_1 = 23,

  // Stereo L, Stereo R, Front C, LFE, Back L, Back R, Rear Center
  CEF_CHANNEL_LAYOUT_6_1_BACK = 24,

  // Stereo L, Stereo R, Side L, Side R, Front LofC, Front RofC, LFE
  CEF_CHANNEL_LAYOUT_6_1_FRONT = 25,

  // Front L, Front R, Front C, Side L, Side R, Front LofC, Front RofC
  CEF_CHANNEL_LAYOUT_7_0_FRONT = 26,

  // Front L, Front R, Front C, LFE, Back L, Back R, Front LofC, Front RofC
  CEF_CHANNEL_LAYOUT_7_1_WIDE_BACK = 27,

  // Front L, Front R, Front C, Side L, Side R, Rear L, Back R, Back C.
  CEF_CHANNEL_LAYOUT_OCTAGONAL = 28,

  // Channels are not explicitly mapped to speakers.
  CEF_CHANNEL_LAYOUT_DISCRETE = 29,

  // Front L, Front R, Front C. Front C contains the keyboard mic audio. This
  // layout is only intended for input for WebRTC. The Front C channel
  // is stripped away in the WebRTC audio input pipeline and never seen outside
  // of that.
  CEF_CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC = 30,

  // Front L, Front R, Side L, Side R, LFE
  CEF_CHANNEL_LAYOUT_4_1_QUAD_SIDE = 31,

  // Actual channel layout is specified in the bitstream and the actual channel
  // count is unknown at Chromium media pipeline level (useful for audio
  // pass-through mode).
  CEF_CHANNEL_LAYOUT_BITSTREAM = 32,

  // Max value, must always equal the largest entry ever logged.
  CEF_CHANNEL_LAYOUT_MAX = CEF_CHANNEL_LAYOUT_BITSTREAM
} cef_channel_layout_t;

///
// Structure representing the audio parameters for setting up the audio handler.
///
typedef struct _cef_audio_parameters_t {
  ///
  // Layout of the audio channels
  ///
  cef_channel_layout_t channel_layout;

  ///
  // Sample rate
  //
  int sample_rate;

  ///
  // Number of frames per buffer
  ///
  int frames_per_buffer;
} cef_audio_parameters_t;

///
// Result codes for CefMediaRouter::CreateRoute. Should be kept in sync with
// Chromium's media_router::RouteRequestResult::ResultCode type.
///
typedef enum {
  CEF_MRCR_UNKNOWN_ERROR = 0,
  CEF_MRCR_OK = 1,
  CEF_MRCR_TIMED_OUT = 2,
  CEF_MRCR_ROUTE_NOT_FOUND = 3,
  CEF_MRCR_SINK_NOT_FOUND = 4,
  CEF_MRCR_INVALID_ORIGIN = 5,
  CEF_MRCR_NO_SUPPORTED_PROVIDER = 7,
  CEF_MRCR_CANCELLED = 8,
  CEF_MRCR_ROUTE_ALREADY_EXISTS = 9,
  CEF_MRCR_ROUTE_ALREADY_TERMINATED = 11,

  CEF_MRCR_TOTAL_COUNT = 12  // The total number of values.
} cef_media_route_create_result_t;

///
// Connection state for a MediaRoute object.
///
typedef enum {
  CEF_MRCS_UNKNOWN,
  CEF_MRCS_CONNECTING,
  CEF_MRCS_CONNECTED,
  CEF_MRCS_CLOSED,
  CEF_MRCS_TERMINATED,
} cef_media_route_connection_state_t;

///
// Icon types for a MediaSink object. Should be kept in sync with Chromium's
// media_router::SinkIconType type.
///
typedef enum {
  CEF_MSIT_CAST,
  CEF_MSIT_CAST_AUDIO_GROUP,
  CEF_MSIT_CAST_AUDIO,
  CEF_MSIT_MEETING,
  CEF_MSIT_HANGOUT,
  CEF_MSIT_EDUCATION,
  CEF_MSIT_WIRED_DISPLAY,
  CEF_MSIT_GENERIC,

  CEF_MSIT_TOTAL_COUNT,  // The total number of values.
} cef_media_sink_icon_type_t;

///
// Device information for a MediaSink object.
///
typedef struct _cef_media_sink_device_info_t {
  cef_string_t ip_address;
  int port;
  cef_string_t model_name;
} cef_media_sink_device_info_t;

///
// Represents commands available to TextField.
///
typedef enum {
  CEF_TFC_CUT = 1,
  CEF_TFC_COPY,
  CEF_TFC_PASTE,
  CEF_TFC_UNDO,
  CEF_TFC_DELETE,
  CEF_TFC_SELECT_ALL,
} cef_text_field_commands_t;

///
// Supported Chrome toolbar types.
///
typedef enum {
  CEF_CTT_NONE = 1,
  CEF_CTT_NORMAL,
  CEF_CTT_LOCATION,
} cef_chrome_toolbar_type_t;

///
// Docking modes supported by CefWindow::AddOverlay.
///
typedef enum {
  CEF_DOCKING_MODE_TOP_LEFT = 1,
  CEF_DOCKING_MODE_TOP_RIGHT,
  CEF_DOCKING_MODE_BOTTOM_LEFT,
  CEF_DOCKING_MODE_BOTTOM_RIGHT,
  CEF_DOCKING_MODE_CUSTOM,
} cef_docking_mode_t;

///
// Show states supported by CefWindowDelegate::GetInitialShowState.
///
typedef enum {
  CEF_SHOW_STATE_NORMAL = 1,
  CEF_SHOW_STATE_MINIMIZED,
  CEF_SHOW_STATE_MAXIMIZED,
  CEF_SHOW_STATE_FULLSCREEN,
} cef_show_state_t;

///
// Values indicating what state of the touch handle is set.
///
typedef enum {
  CEF_THS_FLAG_NONE = 0,
  CEF_THS_FLAG_ENABLED = 1 << 0,
  CEF_THS_FLAG_ORIENTATION = 1 << 1,
  CEF_THS_FLAG_ORIGIN = 1 << 2,
  CEF_THS_FLAG_ALPHA = 1 << 3,
  CEF_THS_FLAG_EDGE_HEIGHT = 1 << 4,
} cef_touch_handle_state_flags_t;

typedef struct _cef_touch_handle_state_t {
  ///
  // Touch handle id. Increments for each new touch handle.
  ///
  int touch_handle_id;

  ///
  // Combination of cef_touch_handle_state_flags_t values indicating what state
  // is set.
  ///
  uint32_t flags;

  ///
  // Enabled state. Only set if |flags| contains CEF_THS_FLAG_ENABLED.
  ///
  int enabled;

  ///
  // Orientation state. Only set if |flags| contains CEF_THS_FLAG_ORIENTATION.
  ///
  cef_horizontal_alignment_t orientation;
  int mirror_vertical;
  int mirror_horizontal;

  ///
  // Origin state. Only set if |flags| contains CEF_THS_FLAG_ORIGIN.
  ///
  cef_point_t origin;

  ///
  // Alpha state. Only set if |flags| contains CEF_THS_FLAG_ALPHA.
  ///
  float alpha;

  ///
  // Edge height state. Only set if |flags| contains CEF_THS_FLAG_EDGE_HEIGHT.
  ///
  float edge_height;
} cef_touch_handle_state_t;

///
// Supported context menu input field types. These constants match their equivalents
// in Chromium's ContextMenuDataInputFieldType and should not be renumbered.
///
typedef enum {
  ///
  // Not an input field.
  ///
  CM_INPUTFIELDTYPE_NONE,

  ///
  // type = text, search, email, url
  ///
  CM_INPUTFIELDTYPE_PLAINTEXT,

  ///
  // type = password
  ///
  CM_INPUTFIELDTYPE_PASSWORD,

  ///
  // type = number
  ///
  CM_INPUTFIELDTYPE_NUMBER,

  ///
  // type = tel
  ///
  CM_INPUTFIELDTYPE_TELEPHONE,

  ///
  // type = <etc.>
  ///
  CM_INPUTFIELDTYPE_OTHER,
} cef_context_menu_input_field_type_t;

///
// Supported context menu source types. These constants match their equivalents
// in Chromium's ui::MenuSourceType and should not be renumbered.
///
typedef enum {
  ///
  // type = none
  ///
  CM_SOURCETYPE_NONE,

  ///
  // type = mouse
  ///
  CM_SOURCETYPE_MOUSE,

  ///
  // type = keyboard
  ///
  CM_SOURCETYPE_KEYBOARD,

  ///
  // type = touch
  ///
  CM_SOURCETYPE_TOUCH,

  ///
  // type = touch edit menu
  ///
  CM_SOURCETYPE_TOUCH_EDIT_MENU,

  ///
  // type = long press
  ///
  CM_SOURCETYPE_LONG_PRESS,

  ///
  // type = long tap
  ///
  CM_SOURCETYPE_LONG_TAP,

  ///
  // type = number
  ///
  CM_SOURCETYPE_TOUCH_HANDLE,

  ///
  // type = stylus
  ///
  CM_SOURCETYPE_STYLUS,

  ///
  // type = adjust selection
  ///
  CM_SOURCETYPE_ADJUST_SELECTION,

  ///
  // type = selection reset
  ///
  CM_SOURCETYPE_SELECTION_RESET,
} cef_context_menu_source_type_t;

///
// Supported text direction. See text_direction.mojom.
///
typedef enum {
  ///
  // type = unknown direction
  ///
  UNKNOWN,

  ///
  // type = right to left
  ///
  RTL,

  ///
  // type = left to right
  ///
  LTR,
} cef_text_direction_t;

///
// Supported <select> item type. See popup_menu.mojom.
///
typedef enum {
  ///
  // type = kOption
  ///
  OPTION,

  ///
  // type = kCheckableOption
  ///
  CHECKABLE_OPTION,

  ///
  // type = kGruop
  ///
  GROUP,

  ///
  // type = kSeparator
  ///
  SEPARATOR,

  ///
  // type = kSubMenu
  ///
  SubMenu,
} cef_select_popup_item_type_t;

/// 
// Supported <select> item.
///
typedef struct _cef_select_popup_item_t {
  ///
  // label name of item.
  ///
  cef_string_t label;

  ///
  // tool tip of item.
  ///
  cef_string_t tool_tip;

  ///
  // type of item.
  ///
  cef_select_popup_item_type_t type;

  ///
  // action of item.
  ///
  uint32_t action;

  ///
  // text direction of item.
  ///
  cef_text_direction_t text_direction;

  ///
  // whether item is enabled.
  ///
  bool enabled;

  ///
  // whether item has text direction overridel
  ///
  bool has_text_direction_override;

  ///
  // whether item is checked.
  ///
  bool checked;
} cef_select_popup_item_t;

///
// Type of an <input>.
///
typedef enum {
  CEF_TEXT_INPUT_TYPE_NONE,
  CEF_TEXT_INPUT_TYPE_TEXT,
  CEF_TEXT_INPUT_TYPE_PASSWORD,
  CEF_TEXT_INPUT_TYPE_SEARCH,
  CEF_TEXT_INPUT_TYPE_EMAIL,
  CEF_TEXT_INPUT_TYPE_NUMBER,
  CEF_TEXT_INPUT_TYPE_TELEPHONE,
  CEF_TEXT_INPUT_TYPE_URL,
  CEF_TEXT_INPUT_TYPE_DATE,
  CEF_TEXT_INPUT_TYPE_DATE_TIME,
  CEF_TEXT_INPUT_TYPE_DATE_TIME_LOCAL,
  CEF_TEXT_INPUT_TYPE_MONTH,
  CEF_TEXT_INPUT_TYPE_TIME,
  CEF_TEXT_INPUT_TYPE_WEEK,
  CEF_TEXT_INPUT_TYPE_TEXT_AREA,
  CEF_TEXT_INPUT_TYPE_CONTENT_EDITABLE,
  CEF_TEXT_INPUT_TYPE_DATE_TIME_FIELD,
  CEF_TEXT_INPUT_TYPE_TYPE_NULL,
  CEF_TEXT_INPUT_TYPE_MAX = CEF_TEXT_INPUT_TYPE_TYPE_NULL,
} cef_text_input_type_t;

/// 
// Supported date time chooser.
///
typedef struct _cef_date_time_chooser_t {
  ///
  // date time chooser type.
  ///
  cef_text_input_type_t dialog_type;

  ///
  // select date time.
  ///
  double dialog_value;

  ///
  // minimum date time.
  ///
  double minimum;

  ///
  // minimum date time.
  ///
  double maximum;

  ///
  // select step.
  ///
  double step;
} cef_date_time_chooser_t;

///
// Support date time suggestion.
///
typedef struct _cef_date_time_suggestion_t {
  ///
  // The date/time value represented as a double.
  ///
  double value;

  ///
  // The localized value to be shown to the user.
  ///
  cef_string_t localized_value;

  ///
  // The label for the suggestion.
  ///
  cef_string_t label;
} cef_date_time_suggestion_t;

typedef enum {
  CAPTURE_INVAILD_MODE = -1,
  CAPTURE_HOME_SCREEN_MODE = 0,
  CAPTURE_SPECIFIED_SCREEN_MODE = 1,
  CAPTURE_SPECIFIED_WINDOW_MODE = 2
} cef_screen_capture_mode_t;

///
// Supported autofill item.
///
typedef struct _cef_autofill_popup_item_t {
  ///
  // value name of item.
  ///
  cef_string_t label;

  ///
  // sub label value of item.
  ///
  cef_string_t sublabel;

  ///
  // id of item.
  ///
  uint32_t unique_id;
} cef_autofill_popup_item_t;

///
// Media playing state.
///
typedef enum {
  ///
  // media is playing
  ///
  PLAYING,

  ///
  // media is paused
  ///
  PAUSE,

  ///
  // media playing reached end of the stream 
  ///
  END_OF_STREAM,
} cef_media_playing_state_t;

///
// Media type.
///
typedef enum {
  VIDEO,
  AUDIO,
} cef_media_type_t;
#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_INTERNAL_CEF_TYPES_H_
